I did a quad shot on Sunday and it still hurts and I did a glute shot yesterday and now that hurts. Funny thing is, I did 1 1/2 cc's in my delt last week and had little or no pain......Since prop is supposed to be good for site injections I'd like to stick it in my bi's but I'm afraid I'll wind up being madd sore and not be able to work out at all. Anyone have any experience with this?