Power jelqing and pumping

Been doing jelqing for a while some manual and mostly power jelqing with some good gains. Decided to get a pump I used before 2 years ago and worked great. Had another session today and it made a difference, but not pumping to hard more at 60-75% of the suction force. Over doing it don’t help (I know that now). I will report back on this in a month based on my results. Happy gains.