I have looked around but cant find the right answer to this newbie questions.
When I jelq have a hard time managing the erection to be around 70-80% I have 100% or 0%. Is it dangerous to jelq with a 100% erection or why is around 70% recommended for girth?. Even If i manage to get 70% erection it is very hard to stand still on a erection level.
After I have PE:d I sometimes want to jerk off, is this okay or is it bad for the growth?