Using insulin pins to pin test is just plain weak. There is no way the hormone is released to enough virgin receptors deep in the muscle.
Putting test sub cue is like asking for an abscess.
Man the fuck up and put the shit in a 21-25x1.5"-1". If you don't like needles go take a bunch of pros and shit out your liver.
I'm pretty sure Arnold, jay, branch, Phil, Dennis, Louie, Franco, serge, Dorian, ronnie, and the rest of the IFBB would echo this!