You're worried about becoming "diabetic" and you're (trying) pinning 4iU fron the get-go? You're not going to titrate up, to check your BG response?
I don't think you've done any "research" prior to doing this, or you're just posting to hear what you want to hear. I say this because you didn't read all the posts, as I asked you a question in one where you didn't respond. And, you're jumping into 4iU after all that concern about "insulin," "metformin," "etc."
You need to be able to do simple math. 100 units divided by 10iU = ?
Answer = "10."
Therefore, now on the syringe, every 10 units of reconstitiuted liquid = 1iU hGH.
So if you want 4iU hGH in the syringe, you would go up to what? Answer = "40 units."
You can do what you want, but IMO, this way of doing it is how we get these "horror" stories about bad sides from hGH, etc.
Good luck!