your gonna do whatyou want regardless of anything said here. You will gain little to nothing with 500 mg test / week IMO. Your levels are already really up there. I don't really carfe about your age, I'm used to seeing 16-20 year olds wanting to juice and not realizing why their age is the problem due to already high test levels and growth plate closure... But your coach is recomending it... that's what shocks me... what a scumbag. This guys vested interest is supposed to be the well being of kids, maybe even one of our own someday... wow.