Hi, I've been using the pump a few times now and I just want to know, what is the proper way to use it. Am I suppose to move my penis/tube around while pumping? Or do I just leave it erect in the tube with the pressure. I followed the 10-15 minute procedure, then take a break, then repeat. When I pump, my penis is of course erect, but it is not any longer or thicker. Am I suppose to be masturbating as well? What am I doing wrong? Any help is appreciated, thanks in advance. *note: i stay in the safety zone, not exceed more than 5hg pressure.