This is a great thread! I need to go over and re read it all, but I was excited as soon as I began reading.
I am a hardgainer, never gained anything (well once I thought I may have gained a 1/8th 1/4th of an inch but it vanished).
One thing I have always wondered is what is my limiting growth factor? Overtraining too easily, or having a thick tunica??
One night laying in bed I realised the best way I can describe my penis is like a hot water bottle!! I can almost see the thick tunica in my mind like the thick rubber of a hot water bottle. Not like a baloon like some describe. Only franco columbo can blow up hot water bottles...because they are tough structures...unlike baloons which are super easy. Perhaps this is akin to tunica thickness???
Now perhaps one clue as to is you have a thicker tunica could be if you are easily able to surpass your erect limit easliy during certain activities? I hear some gusy easily gain a half inch or so when edging, pumping, clamping, jeqling?? I have never really noticed this happen, now perhaps this says something??
I think also a longer warm up may be required for heat to penetrate all levels of the thicker tunica!
We must conquer this troublesome issue if it is indeed a reality. I think my gains may depend on it?! It doesn't really bare thinking about that this could end my hopes or at least expand my PE time to 10 years!!