When I was first placed on trt my dr wrote me a script for pins, 23 ga 1.5” he handed me the script, and I just laughed having done gear for years prior I already knew about pins, so I proceeded to tell him, your gonna need to edit this to about 25ga 1” and he comes back with oh did realize you were the expert. Wasn’t trying to be rude to him but for crying out loud I was only 13% bf doesn’t take much to get IM! Textbook info on pining size can blow me..