I took my first shot yesterday. Didn't really sting, a little sore for a little while. There wasn't any residue left in the bottle, so I'm sure I got it all in. Wasn't much in the bottle to begin with, just a few small specs stuff to the stopper. Kind of made it a pain to recon. I kept the bottle in the freezer after I used it. Is clear right now, I added a little BA and gonna squeeze it in just to make sure I got it all, have to get my moneys worth. Anyways, didn't make it into the gym yesterday, wasn't to happy about that. Tonight I did back, I lifted more then I ever have, and not by just 10 lbs, every I squeezed a final set of 10 in, 30-50lbs more. No preworkout drink or anything, Placebo I dunno, but with the guys saying they noticed an increase in strength, I think I did too. All other supps have been the same for a while. I will do another bottle next week. Be nice to do one every week. But that would cut into my seros budget.