If you've done bi's before and you have no prob's then that's all good, but for newbs who just want to experiment this is for you.............
YOU WANT TO MAKE SURE TO HIT THE RITE SPOT BI'S ARE NOTHING TO MESS AROUND WITH!!!!!!!!!!!!!!!!!!!!!!!!!!!!! Stick to quads ,delts, gluts thats 6 spots to rotate you should never have to hit a spot more than once a week with the 3 areas i just gave you. Don't be stupid it will not make the injected area any bigger by shooting there, It will be bigger initially because of the compound you are injecting and maybe because of swelling but not because you shot juice in that spot it doesn't work that way. You are asking for trouble if you screw up.........