Basic Question

Do you have to be fully erect when pumping, or do you have to start flaccid?
How long should you keep the penis under pressure?
I have a pump, but stopped using it because I felt that it gave only phony gains, or it’ll make you impotent. Also, my ballsack kept getting sucked into it, thus stretching it out.

I’m fucking desperate for any gains.

Starting out erect seems to help prevent the fluid buildup that is mostly an annoyance and not really anything useful. Senior pumpers recommend short to moderate sessions (10 to 30 minutes) at low vacuum as the best way to get gains. The correct size tube, a good fit at the base, and low vacuum (around 5” Hg) can help prevent the scrotum from being pulled in.

Read Avocet8’s “Pumping 101” thread for more info.