Just started shooting 3 wks ago so far ive done mostly delt shots some quads I found quads most painful prob because of the muscle hardness...I shoot delts with a 1.5 inch 22g pin and a 1 inch in the quad.. I find the delt soar for about three days after..I'm a little freaked out to do glute so many nerves I was reading an article saying you could temp paralize yourself....crazy shit!