I regularly pin many locations, I pin traps, pecs, lats, front delts, side delts, rear delts, glutes, ventro glutes.
I recently stopped VG shots because I was getting numbness when I laid on my right side, my whole leg would go numb, and I went to the doc after about 6 months of that happening and she said I had bursitis in my hip. I believe it is from doing many VG shots, most 3ml, and that caused me to have inflammation in my hip so I got anti inflammatory medicine for it and stopped VG shots and now I no longer get numbness in my leg.
Traps are always fun to pin, there are alot if nerves in that area and you will most like hit one now and again and your neck will spasm and twitch, it's kinda freaky.
Pecs are super easy to pin, I regularly put 3ml in each one. I pinned my pecs just yesterday and again today.
I often get bruises where I pin and alot if Times they will still be there in my next go around and I have to try to pin around it but still in the area I need to hit.
The one thing I can't stress enough is to pull back the plunger each and every shot to see if you hit a vein, blood equals vein and man's pin in another spot close by to avoid it.
Thanks
TMM