I'm not so sure this is the smart thing to do. Are you pinning on off days as well? It is my understanding that IGF works nothing like AAS and does not build up in the body. Once pinned, it floats around looking for anything to attach too (i.e., organs, fatty tissue, LBM (if receptors has been up regulated by work), cancer cells (tumors, ect), and any other cells in the body willing to allow an attachment. So unless you've done work (whether it be legs, arms, chest, whatever) & up regulate satellite cells in the muscle fibers, your IGF is going to attached to whatever cells it has available at the time. So if pinning cold, it is not directly effecting muscle fiber and creating new myofibers like we want it to (myofibers being immature muscle fibers (new fibers) which we then want to mature later down the line either by AAS or other means.
You get what I'm saying.
You might want to reevaluate your AM/PM split and stick to PWO pinning only.
Just my .2 cents,
Sprt
PS: I really dont know what the F I'm talking about, so dont listen to me. Investigate and do some homework on it. Find out the truth for yourself.
Mean while, I'll stick to my double pinning PWO on WO days and zero pinning on zero WO days.