I normally pump daily for 20 minutes at 5 hg. About once a week I pump at 4 hg in three 20 minute sessions separated by 5 minutes of jelqing. I can't comment on loss of EQ because I have ED (diabetes) so I need to maintain the erection with a tension band if I want to use it for penetration. However, the longer session results in an additional 1/4 inch in girth.