I made mine 100mg/cc. What is the advantage of making it a lower dosage? More volume of injects. Forget that. If you only want to inject 50mg, you only need to inject 1/2 cc. That leaves plenty of room for other stuff.
Other stuff? Yeah, like a small, once weekly shot of test. That way the 'rage' problems aren't severe. With the way fina shuts down your natural test, I would highly recommend something like 100-250mg/week of enanthate, or cypionate.
As for dosage, it seems most people recommend 75-150mg shot eod.
I have only been on for ~2 weeks and I LOVE fina! Fina Rocks!