i can't seem to bulk up my quads no matter what i do. i hit them hard every 5 days but they don't seem to want to grow. i usually inject in the glutes or delts, so would it help if i actually jabbed the quads? i understand that you need to poke them on the outside upper right quadrant with a 1inch pin (right before training). has this worked for anyone? i also understand that the quad will be sore for the following week.