As regards girth, I would also think there is only so much to be gained safely. Girth appears to be related to exercises which place lateral force on the penis, I.e. Squeeze jelqing, clamping, ulis and so forth. So rather duration of the exercise it is more concerned with the intensity by which you jelq/apply pressure?
On the injury issue, I agree. However, we are talking about adding possibly a maximum of 5 minutes jelqing per week starting at 10 minutes. So by week 7 you are doing 30-40 minutes, which a lot of guys are doing and is pretty much what is recommended on the newbie routine. Personally I would say going beyond that length of jelqing is not that wise. But you have to look at your PI for feedback.
Of course, the slower the less risk of injury, but also the more likelihood you are not applying the stress to gain.
Big Dainjerus, I’ll make the point again, how do you know you are gaining from anyone method in a week period? You are simply not going to see a large enough measurement in that period, so while you wait a month for that, perhaps to find you have gained, or perhaps not, someone who is constantly adapting the routine is sure to know they haven’t hit a conditioning phase, although whether they are still applying enough force is another issue.
Starting slowly to avoid injury is wise, however, not applying enough time for your routine will not provide the best results possible for you, so it is a balance of gains vs risk I guess.
01/08/07: 5.75" BPEL, 5.25" EG ::: 26/05/10: 7.3" BPEL, 5.4" MSEG, [My Progress Pics] - [My Routine]
Revised Min Final Objective: [/b] 7.75" BPEL (33% increase), 5.5" MSEG