OK, I'm an IGF newbie, and just started using it tonite after training, and had a question...since we are uning slin pins to inject IM..does it matter where in the muscle belly you inject or do you need to follow proper site inject tecnique/placement?? Another thing .I'm going to use this cycle on bis, delts and chest (cause they can never be too big ) I understand that even when using site injects it still is systemic but supposidly it cuts down the overall systemic effects.. But my bi's actually hurt, is that supposed to happen..I used 40mcgs split between bi's