It's actually for a dead lift injury to my left lower back. I was just curious if I could use one also for my PIP. I had injected the day before in my right glute, which I think rendered the right glute muscle at only 50%, which is why my body tried to compensate and utilize the left leg/back at 150%. The weights came crashing down and my left arm got fuzzy and tingly, I called myself an idiot and thanked god it was a close call, as some nerve was clearly affected, gingerly walked to grab and icepack and laid myself down on bed carefully. I'm using a green 21 guage at the moment, because I'm all out of the blue 23's. Injections are smooth and clean (i'm getting better), it's a decent mix of 1ml Enanthate 400 + 1ml Sustanon 350. I kinda just mix em together. Pip for me lasts about 48 hours. Glute is the best, because I can actually get stuff done, just not dead lift apparently.