Yeah, Tren A can have a bite to it. I've found that once you pin Ace and Prop for roughly 3-4 weeks the body, ie: muscle can become accustomed to the esters and the PIP becomes very tolerable or negligible to nothing at all. Recently a lot of guys have been complaining about Test E giving them PIP and it doesn't matter who the source is. It's assumed the quality has changed from the recent raw shortages. Sources are pumping out the raws right now to catch back up. About 6 months ago I picked up some Test E 300mg from two different UGL sources and they both gave me PIP. I never got PIP from Test E before the raw shortage hit.If so its the tren, thats going to have pip. Never had pip from test, ever. But tren, absolutely.