this dude from my gym telling me that u get 100% of juice when u inject into quads 50% of ur juice when u inject in your ass and 70 % when u inject into delts. hmmm i dont get this.. what makes it diffrent???? all i know is quads delts and gulet muslces are large muscle groups and deep too. once u inject the drug is in the muscle. so can some1 explain to me how hes right??? or how hes not??