Everything below is all personal opinion and i have absolutely no science to back it up, just experience from myself and friends.
I really wouldnt take insulin without growth hormone. Prolonged use of growth lowers insulin sensitivity, so insulin injections counter that and you dont get fat as fuck (generally...).
R type insulin has two peaks, 4 hours and 6 hours i believe. Be ready for both because if you arent you will freak the fuck out. I am enjoying novalin R wayyyy more than I did humalin R, for whatever reason. The humalin peaks were nasty. Novalin seems to be more constant for me. Buy a blood glucose meter to understand what is going on inside your body. It takes out all the guess work.
IGF is fine in BAC probably for two weeks and you dont need to freeze it once you constitute it. Its usually in 1mg vials, so 1ml of BAC = 100mcg per .1ml (or 10iu's on a slin pin). I am finding ABSOLUTELY TREMENDOUS growth pinning igf IMMEDIATELY after im done working out, into a muscle worked. Literally, last set, go to the bathroom, wash hands, wipe location, pin 100mcg into muscle worked. With LR3 you really dont need to bilaterally pin like you do with DES, so there is some ease of use there. I alternate left side one week and right side the next.
Warning with IGF, half life is relatively bullshit. Once it binds to blood albumin, its going to find somewhere to attach itself to that has a high volume of blood flow to create cellular growth; which is why I pin immediately after my last set when the pump is still good and strong. If your body doesnt use all of the igf injected into the muscle group worked, it needs to go somewhere, and that happens to be your intestines. IGF is directly related to that whole "roid gut" look. People who say its because of high levels of GH and insulin ARE NOT WRONG, because those two in combination greatly increase igf levels in the body. However when we inject igf directly, it has to go somewhere. Ive read its different for everyone and depends on so many factors that there is no way anyone could ever create a magic number of how much to inject to avoid this. Ive seen people recommend not going over 60mcg's in one shot, and others say they do 250mcg's a day and have 0 issues. There are no many factors in the body AND from your source that no one can actually know. That being said, I've seen no issues on 100mcg shots myself.