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Physiologic Indicators (PIs) to help growth!

Physiologic Indicators (PIs) to help growth!

After reading accounts of those who have had good growth, as well personal experiences of growth and loss of progress, it has become apparent that there are Physiologic Indicators (PIs’) that can guide you.

PIs (Physiologic Indicators) are the observable physical responses of your penis to the forces applied in PE. Anyone who has done any PE has seen these, yet many don’t use them for the invaluable information that they offer. The chances of being successful in PE dramatically improves or drops based on your ability to understand what your “body is telling you”!

I break PIs down into Negative, Positive and Neutral.

NEGATIVE PIs meaning that when you see these, it is a sign that you are over training your unit, and you need to cut back the amount of force/time applied. POSITIVE PIs means that it is an excellent indicator that you are NOT over training your unit, and probably improving it. NEUTRAL PIs, are neither obviously positive or negative. They must be INTERPRETED in relation to other definite Positive or Negative PIs. They are referred to as neutral, because at times, they may be a positive indicator, and other times, a negative indicator. Whether these Neutral PIs are positive or negative for YOU…will only become obvious when other DEFINITE Positive or Negative PIs begin to show.

En español aquí.

Lets start with some definite Negative PIs;
-decreased nite and morning wood
-decreased hardness of erections
-loss of size

Now for the definite Positive PIs;
-larger flaccid hang lasting all day
-increased nite and morning wood
-increased hardness of erections
-increase of normal size

Neutral PIs;
-temporary penis contraction after a PE workout
-slight achyness in your penis
-increased size temporarily, a few minutes to a couple hours
-edema in the penis skin

Of all the PIs, SIZE GAIN OR LOSS is the bottom line! Size loss or gain will give you the final word on whether you are being effective or not.
So lets use an example and put these PIs in use.

Lets say a beginner starts with a simple routine, 5 minutes warm-up followed by 5 minutes jelquing. He sees when he is done, his unit is slightly larger, reddish and hangs fuller for a few minutes followed by some contraction. Later on he finds that he has increased nite and morning wood. Together this is a good picture, the increased nite and morning wood indicate that the other Neutral PIs can be interpreted as Positive PIs.At that point, it would be sensible for this newbie to continue this routine and measure himself about once every one to two weeks.

If after two weeks, all the PIs are the same, yet he has made no gains, he should increase his force and or time of PE.Why? Because there are no PIs indicating over training(Negative PIs), therefore his lack of growth is due to UNDER TRAINING. In this scenario, it would probably be smart to increase his jelque time to 10 minutes. This he should stay with, watching his PIs for indications of Negatives.

Growth for most of us is a slim margin between too much and too little.

So going back to our Newbie, so he ups his jelques to 10 minutes, and still has no Negative PIs. This indicates that he is still not into over training. Lets just say, after 2 weeks he remeasures and has 1/4 inch growth. This of course is the ultimate Positive PI, and he should STAY with his routine until he stops growing. Then, and only then would increased force/time be called for.

Lets take a different scenario;

John Q Dickpuller has read the latest technique of hanging a bowling ball off his dick and decides to give it a try. First thing he notices is after the work out , his unit turtles up on him (Neutral PI). Later on he sees that morning and nite wood is gone. Finally, when he measures in about a week, he sees he has lost a half inch in length. This bottom line Negative PI indicator tells him he is way into over training! The turtling, interpreted in light of the loss of size and loss of nite and morning wood, is a Negative PI for him.

John now knows that that contraction of his penis immediately after his workout is an early indicator of over training his unit. He lays off completely and waits for his normal nite and morning wood to return, which it does in about one week. This is a good indicator that he has recovered from the excessive trauma and is ready get back in the game.

John now tries again, this time with a tennis ball. He sees that after his workout he gets slight shrinkage, that only lasts for 30 minutes. He finds his nite and morning wood improves, and after 2 weeks sees that he is starting to gain size. John now knows that contraction for 30 minutes or less, is an early Positive PI for him, and keeps that in mind whenever he makes any changes to his routine.

Lets use a third, more complex scenario;

Mr B. Dog finds that if he whacks his dick with a hammer, it turns purple, and shrinks up for a week. He loses his erections completely. Wisely, he decides to leave it completely alone for 4 weeks. Slowly his nite and morning erections return, his flaccid hang is now longer than before. He find whens he is fully recovered, he has gained a half inch in length and and inch in girth. Here we have a definite Negative PI and a Neutral PI, but interpreted in the light of the final PI (that is, gains), we can say that for Dog, a shrunken and purple penis is a positive indicator of future growth for him, if he takes the time to fully recover.

Recovery is determined by return of definite Positive PIs.

Last scenario;

S. Knucklehead decided to try pumping. He is making slow and steady gains. His nite and morning wood is excellent, best in years. He also finds that his day time flaccid hang is longer than ever and fluffed out most of the day. Mr K knows from this experience that a longer, fluffed flaccid is a Positive PI for him that he is “in the zone”. Mr Knuckhead decides to supercharge his pumping session by doing it while clamped. This technique not only feels great, it causes his dick to swell to all time new size with no lymphatic fluid (during the PE)! Knucklehead gets so enthusiastic that he does it for 5 sessions in one day! That nite Mr K. finds his wood is gone, as well as the mornings. He also finds that his penis is hanging shorter and more contracted. He measures himself over the next week and finds that he has lost a full one half inch.

So even though he found that his unit was huge during the pumping, the resulting definite Negative PI’s indicated that it was more trauma than his unit could handle. Mr K. learned that a swollen dick during PE could be a definite Negative PI for him! Mr K took a week off and waited for nite and morning wood, as well as normal flaccid hang to return to normal (Positve PIs).

Mr K restarted his program, but with 5-10 minutes of clamped pumping. He carefully watched his PIs for indications of over training before adding any force/time.

The bottom line is, your penis has definite responses to the forces you use on it. Learn to read the Positives and Negatives, and interpret the Neutrals. Using these as guidelines for your workout, you will have a much better chance at dialing in the amount of force/time needed for you to achieve growth.


Last edited by sparkyx : 10-06-2008 at .


They are some excellent guidelines you’ve got there. I’d say they’re a must read for any newbie and good refreshers for longtime dickpullers. In many respects what you’ve written is common sense, but as we all know common sense is not very common.

Well done.

Really good summary Sparkyx. Well done.


Forum Guidelines PAST: 5.25"L x 4.75"G (base),EBP (January 2001) / PRESENT: 7.50"L x 7.00G (base),EBP It doesn't happen overnight! Commitment! Focus! Patience!/ Main Routine = Pumping/Jelqing/clamping + Homedic TheraP or ACE Wrap TheraP or ACE Wrap

<applause><loud cheering> Way to go Sparkyx! <more applause><more load cheering> . I’ve been a believer in this since day one. It is making my routines so much more efficient. I am taking new measurements over the weekend. Hopefully I will see my first gains. Although if not I won’t be too dissappointed cause I’ve only been at it for two and a half weeks. Even if I don’t have any size gains, my erections are certainly harder already (the wife already commented).


Thanks peforeal and ynarevith73!

Thunder, I wish I could go back and edit it!

On further consideration, I think it would be more accurate and descriptive to call General PIs—-NEUTRAL PIs.

That is, in of themselves, they are neither clearly Positive or Negative, yet they are showing a Physiologic response or INDICATION.

What they are indicating…will only become obvious when other DEFINITE Positive or Negative PIs begin to show.


Thanks for boiling this down! These are very good practical guidelines for succeeding at PE!

The one useful bit of information I received from before discovering this place was that the objective of PE is to “encourage” your penis to grow, not to “force” it. Growth cannot be forced. Your PI’s provide a good, practical way of measuring whether you’re “encouraging” or “forcing.”

Enter your measurements in the PE Database.

It seems like all those who have made good gains (except those that just “luck out”) learn to tune into one or more of these PIs.

Like Horsehung said…”you have to listen to your body”.

Unfortunately, this listening to your body was something that took time, sometimes a long, long time to learn.

Some NEVER got it!

This is just an attempt to SYSTEMATIZE this knowledge, thereby making it more of a science.

The point of the article is to help others (especially Newbies) to make greater gains with less mistakes…in less time with less injuries.

It may turn out for most of us, (like in bodybuilding) have a fairly NARROW window of response.

Too much stimulation…no progress, or worse, regression and injury!

Too little… and no growth, although you may see improvement of quantity and quality of erections, which is pretty good in of itself.

Just right is when the magic happens!

Heres’ to more magic on a regular basis for more of us!


of course I have to tune in on this to congratulate you on this summary.

Now let’s see this baby develop :)

GREAT! Now I have to change my signature again! :)


Y oh Y ;)

Thanks Sparky! This makes good since!

When I first started PE I was a little too enthusiastic and probably ramped up my routine sooner than I should have. After approximately 6 weeks I went on a backpacking trip for about 10 days. During that time I didn’t PE. As soon as I returned I measured, anticipating a loss. However, to the contrary, I had gained a 1/4 inch in length. I had a little time off over Christmas - New Years and I thought that I must have over trained during that period because my evening and morning erections hadn’t been as strong. It seemed as though my flaccid hang was shorter and less full. So I took last week off and began my new routine in earnest on Monday. I have decided to jelq about 1/2 an hour on M-W-F ( similar to a weightlifting routine ) and to hang M - F with 2 x 20 minute sets on jelq days and 4 x 20 minute sets on non-jelq days. Hopefully, my new, “Less is more” approach will help me overcome the 7.5” plateau and forge on to the much coveted and sought after “Golden 8”.

I also wanted to mention that I have found another personal indicator of growth and/or overtraining. I often measure prior to jelqing and post jelq. ( All of my recorded measurements on this site are cold - pre jelq. ) I have noticed that prior to a noticable growth spurt I will get an 1/8 to 1/4 inch difference in my pre and post jelq BPEL measurements. When I’m in a plateau these length measurements will vary much less. It seems analogous to weightlifting. When I train hard, eat correctly and rest appropriately I get an incredible pump in the gym. When I have difficulty maintaing that pump its usually an indication that I either need to take a break or do something differently.

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