IMO Pecs are one of the easiest and equally painless as delts quads etc. Damn though 22g 1 1/2", those are freakin harpoons. I roll 25g for everything, so many ED injects I try to keep the scar tissue to a minimum.
yeah.. they are pretty big but i just got sick of taking 3 min to push the oil through the syringe so i decided to go with bigger needles.