Pumping: Why is "oversized" cylinder bad for growth

Anyone care to explain the mechanics? I thought the role of the cylinder is just to create an enclosure with negative pressure - so long as it does that, what does it matter how big the enclosure is?

I think the main concern is whether or not you wish to focus on just your penis or if you want to include your scrotum. Larger enclosures, for smaller men, have the tendency to suck your balls up into the tube if the enclosure is too large. Another issue is a larger enclosure may also make it more difficult to obtain a decent seal. For men under 5” in circumference, a 1.75” or 2” cylinder should be just fine. I only have a 5” circumference and a 6” length and the place that sold me my cylinder told me to get a 2.25” cylinder. I have shaved pubes, so I’m capable of getting a decent seal, however, I think a 2” cylinder would have been better. Course now that I’ve used the 2.25” I can’t take it back. I’ll try it for a while and perhaps I’ll be able to work on my girth with it.. But I have a feeling that I’ll be going back for the 2”.

Only get a larger cylinder if you want to include your balls in the process.

That about sums it up. The only argument I’ve seen for a smaller, close-fitting tube is that it favours length over girth. I don’t know how valid that is but, personally, I’m after girth and use a slightly oversized tube (2”). With a good initial seal — I make sure I press down hard enough to exclude the extra equipment — I have no problems with suck-in. I’ve also used a rubber cock ring — not tight! — with great success to prevent turkey-neck and suck-in while pumping. (Shaving is definitely a good idea, too.)

Well, I can tell you for a fact that without shaving my pubes, a 2.25” cylinder for a 6”x5” dick would be too large if you only want to pump your cock. Shaving is the only thing that made this work properly for me. I’ve found that as I pump with the larger tube, I can prevent my balls from entering as long as I’m careful. But, as you can imagine, I’m going to get some extra skin drawn in at the base. I don’t know if this will be an issue or not. As for the question of length vs girth.. That seems to be going on forever. Here’s my thoughts on it:

A narrower cylinder’s walls will keep a tighter connection around your cock. As you pump, the only way your dick can expand is to move forward up into the tube. It can’t go outward. So theory would suggest that length would be result. A wider cylinder permits the tissues of your cock to expand outward in addition to upward in order to fill the volume.hence girth is going to be more emphasized with a bigger cylinder.

I personally want a thicker dick not necessarily a longer one. Any gains I get to length will be bonus and I won’t complain. ;) However, if you pump and jelq in the same session, you should be able to improve length.

Are you saying then than an oversized cylinder is not in fact bad for growth, not in the girth department anyway, and that the only problem with it is balls being sucked in and difficulties with sealing? The reason I’m asking, the only decent pump I could get came with a 2.5 inch cylinder. Me being 6 at the base, 5.7 midshaft, I got it anyway just for the sake of the pump mechanism, thinking to buy a smaller cylinder separately. But now that I’ve tried it I have no problem with balls or sealing so I’m wondering whether I should get that smaller cylinder after all or stick to the one I’ve got.

Your dick doesn’t know what sized cylinder is holding the vacuum. So my answer would be that if you are not having problems with the cylinder, keep using it.

Ideally there should be a pump where the entrance is 1.75” or 2”, but the actual area the penis is in is larger. Basically a pump that doesn’t suck your balls in AND keeps your penis from touching the walls (equal pressure all around). I don’t know if this exists though.

If you don’t have problems with the seal or the balls being sucked in, keep using that 2.5” cylinder, specially if you are after girth.

Ok guys, thanks for your comments. I’ll stick to my 2.5 cylinder then.

Here’s a tip: you don’t want your dick to touch the inside walls of the cylinder when fully pumped. On a 2.5 cylinder, the head of my dick seals off the rest of the cylinder beneath it, causing less suction and stifling results. Keep in mind you’re not going to get any bigger than the cylinder your using while pumping. You want your dick to be in the cylinder “touch free” for maximum results.

I know that lots of actions regarding PE and human body is, in most cases and generally speaking, personal (works for some, but did not on others and etc).

I’m at the early stages of pumping at a very light pace: 5 minutes (~100 mm Hg) added into my newbie routine, 3 times/week.

My EG is ~ 4.75 and currently using 1,75” LeLuv cylinder.

Even with 5 minutes inside (after 40 wet jelqs) with 95% erection, few portions of my penis itches against the tube (inside):
1) the top of my penis, right in midshaft, this because I have an slightly downward curvature.
2) at the base, when pumping, vein go berserk and enlarge alot, pressing against the tube (presses just about 1/3 of vein size). This one is located on the right side. On the left side there’s another vein, but did not enlarge that much.

Already purchased the 2,00” cylinder for the future and want to know If will be benefical for me to just step up into the 2,00” cylinder, since my main objetive is, and always will be, to gain girth.

Any advice/opinion is always well received.

I always start with a smaller cylinder and use it till I can completely pack it from base to head. This works to gain length. Once I don’t see any more length gains on the session then I step up to the next size cylinder. Usually do 25 min in the 1-3/4 and then 20 in the 2”. At times I have gone up to the 2-1/4 but I usually get quite a bit of fluid buildup with it. I can pack both the 1-3/4 and the 2” in quite a short time. I get a lot more length in the 1-3/4 though. If I only use the 1-3/4 there is no fluid buildup and I can pump for a few 20 min sessions easily. I also use an electric heating blanket wrapped around the cylinders for keeping it warm as it helps a lot with the stretch. The heating blanket works best when the tube is fully packed and that’s why I always start with the smallest tube I can fit into.

Hope this helps.

I hope you guys realize you are posting in a thread that is 9 years old. The info is still good of course, but just checking.

Haha. Just looked, this is an old thread. Anyway I’m glad it came back up. I can pack my 2” tube girth wise pretty quick and it flattens my glans out even with the shaft although I have a mushroom head normally. Just ordered a 2.25 and a2.5 to see what happens. May get close in the 2” first and step up then. I think the glans should flair back out in the bigger tubes.

2.5” is too wide for 99% and encourages a fire hydrant shape. Some of us wish they had 2.125” tubes and 2.375” tubes.