I was skeptical too, i'ma very pragmatic person, so i took a crack at this P.E. thing at December 2015, and i started to see gains after the first month, i guess newbie gains. I was initially 6.7" NBP, and got to 6.9 pretty quickly, then to 7" NBP (that's when i stumbled upon this forum and i decided to register : P) and ecently i'm getting close to 7.5" NBP, although not consistently, i need some time to cement that. As for girth, can't say nothing as i haven't gained a measly mm yet, i started with 5.6" midshaft and that's where i still am, pretty much. I
am a member of thundersplace and mattersofsize forums, and started doing the newbie routine of the former, which i've been tunning progressively with more different exercies, intensity, etc...
I didn't hold any hopes nor prejudices towards this, but it seems to be working since then, so i'm still at it.
Plus, there's not only the size aspect, i think P.E. is like sports or weightlifting but oriented to your manhood. It gives you better erection quality, stamina (through kegels, edging, ballooning, etc...) and betther penile health overall.
So there you hgo. And no, i don't have before/after pics, sorry, neither in those forums nor here.
I guess one day i'll post them, when i want to. I don't have to prove nothing to no one, so it doesn't matter much to me right now.
But P.E. works nonetheless, you can take my word for it, if you will.
Bye!