Freejay said:I pop with 23g 1" and LOVE doing it in the quad. I have yet to do a glute pop. I rotate from delt to quad. I sit in a chair and have my leg sticking straight out, making sure the quad is relaxed. If you do flex, you're in for a world of hurt.
Oh and don't try moving over to put more of your weight on the other relaxed side with the pin in already in your leg. that's fricken hard to do.