I can’t really say all my gains have come from BTC stretches, because I’ve been PEing for almost 3.5 years. Meaning, manual stretching, jelqing, clamping & pumping.
I’ve gained a total of .625” BPEL, & .375” MEG.
When I started PE, my base girth was less than mid shaft, about 4.5”. The first 1.5 years or so, although gaining (slowly) base was always a little smaller than mid shaft. At that point and time is when I decided to try BTC stretching as much as possible. Its also about the same time I bought a pump.
But I truly believe my gains came from the BTC stretching. The reason, I believe this is because of all my stretching actually brought out a lot of the inner penis. Now, my BEG is always .25” bigger than MEG. It’s easily bigger visually and by feel bigger than MEG. That was never the case at any point in my life prior to the BTC stretching. I can also tell it’s the inner penis has come out, because if I bend my flaccid penis in any direction, the top half will easily bend. But the bottom half holds firm. (Doesn’t bend) It’s hard to explain, but the base base is always bigger and firmer than the top half. Hope that all makes sense to you!