Shallow IM means Hyde is 25% bf & has 26g 5/8” luer lock needles & 27g 1/2” slinpins, and however far it gets into the muscle is where it ends up without me worrying about it
Some guys make a fuss about putting oil deep, but with these smaller volumes and considering it’s still absorbed fine eventually subq it just doesn’t really matter. What matters is adjustments to the release rate, if you care. So a bigger total volume in certain locations with less bloodflow is going to release slower & more stably than somewhere higher blood flow and smaller shot. Pinning 0.1ml in the delt will release at a faster rate per mg of same drug than 1.0ml in the glute.
But the results for growth generally come from total drug exposure over longterm I believe, so unless I’m trying to time a preWO administration specifically of an acetate/propionate ester I don’t care. Long esters will still take time to cleave off, and no ester drugs won’t take much faster or longer to act.
So say a guy pinned Tren Ace first thing upon rising each day and then trained before work. In that scenario I would be sure to pin a smaller muscle since I want it releasing ASAP. Everything else, whether test e or TNE, it’s not going to make a difference. TNE if you put even 2cc deep in the glute, okay just take a little longer warmup with some glute bridges and it will be rolling before you know it.