TweetI know for myself, my body always gets varying degrees of swelling from just a lump to actually red and warm patches where i shoot anytime i use a short ester. I get it the worst from NPP and Bold base, then primo ace and then its prop, tren a being on the milder side. When i tried npp and the bold base I got the worst flu like symptoms and i tried both drugs 2x from different suppliers. I will never try those again. I know cutting stuff with deca usually works pretty decent for me.