I am currently starting the third week of an Epi cycle @ 40mg/day. On day 14 I started getting debilitating back pumps that almost shut my work out down. They were to the point that I actually had to sit down between sets just to finish my work out. I have ordered some taurine powder from NP but in the meantime I am taking taurine tablets I got local but it does little to phase them. My question is should I drop my creatine usage while on cycle? I am currently taking creatine mono with my pre-work out shakes and I wonder if it could be causing the pumps to intensify. My water intake is through the roof so I dont think that is the culprit. About an hour after I work out the pumps are gone and everything is fine. Anyone got any suggestions?