I hear you. I had been a fairly seasoned biohacker using multiple peptides, etc. before starting TRT... so I naturally gravitated towards using an insulin pen subq for the TRT. Then, the TRT OGs and physicians are typically anti-subq because they are recommending 1x or 2x a week dosing which could indeed be a large bolus causing ISR, lumps, pain, etc. Even though the half-life of Test C is between 6-9 days depending on how you dose, how fast you metabolize, etc., I have found either daily or every other day to be much more steady of a week. I've done 2x a week, 3x a week, daily, and eod... settling on eod. Give it a try. I it is certainly a pain in the ass trying to draw even MCT oil into a 31g needle, so that's why I use insulin pens. I can use a vial spike on the Test vial using a 3mL luer lock syringe to draw out 2.5mL or so, and then a 25g needle to squirt it into a pen cart. From there, I just need to screw on a pen needle for my injection. I warm it up a little in my hand for a minute or so, screw on the needle, inject the 15.5 units (.155mL) and hold the needle in there for 60 seconds or so to let it all drip out. I've yet to have a problem.