You know, my theory is to know a bit about the gear, not become an expert but enough to understand what is safe and what is not, know about training, and then any gaps in those two are filled in by pouring out your guts in the gym. Working out to failure, and past every time, coming back and doing another set at the end of the workout, you know, ambition, it'll fix a lot of problems elsewhere. Maybe that has to do with the vascularity, maybe genetics??? (see lol, here's a gap in my knowledge right here but it doesn't matter cause hard work beats it out)