DANG!!
Nowadays I rotate between Both shoulders, Quads and right upper glute, no balls to do it on calf, pecs or traps, don't ask me why, it just gives me the quivers thinking about it!
Tried that shit back in 93' on my left glute, coz that's all I could get that one time at the reliable Hy & Zel's Pharmacy (loved it there, no questions asked when picking up pins). Left me so much scar tissue there, I cannot pin near that region anymore!1.5” harpoon 18G pee pee hole
Nowadays I rotate between Both shoulders, Quads and right upper glute, no balls to do it on calf, pecs or traps, don't ask me why, it just gives me the quivers thinking about it!