hey... i was just wondering if PC muscle excersizing will actually help with stamina. i was doing these excersizes off and on for a while, 100-200 a set, and i'm still not convinced. i'm not sure, but i believe it does help with strength of the erection... any of you know tricks for increasing stamina? oh; and tantric sex? does anyone have any experiences with that? i'd love to look into this, but i know nothing of it.