Simple answer: As much as you can afford for as long as you can afford.
8iu's is a good start, 10iu's is even better. But if you can afford to do 8iu's for longer than you could with 10iu's, do the 8iu's.
I use 10-12iu's/day in a mon-wed-tues and sometimes wednesday fashion..with thurs-sun off.
Split your shots so you're doing 2-4 a day, not one.
Take your GH either at least 1 hour before you take an insulin shot, or 2 hours after you take an insulin shot.
What's your goal with adding GH? Fat loss? or Mass gain? If mass is your objective (and by god it should be unless you've got a pro card or $10k purse on the line), you'll want to increase your total kcal intake by 500-1500kcal/day. You'll be glad you did.
(I applogize if I seem harsh or out of character....it's nearly 3am, I've got a slight buzz from this alcoholic corn syrup called Hooch and the goddamned Benedryl and Unisom seems to have no effect yet....anyways.....good luck)
When I'm *On*, I run 6-7 weeks on, with 3 weeks off, then back on. When I'm *Off*, I'm off for months at a time.
I run short acting drugs. Only time I use long acting drugs is during the first 2 weeks of a cycle, such as 3-5g's of test Enan or Cyp. The rest is just heavy test, 300-400mg Prop or Susp/day, 100-150mg tren, 50-100mg dbol or oral winstrol/day, lots of insulin, gh, t3, ketotifen, and sometimes EQ.
Bro, no offense, but if you're doing AS you really should know about Arimidex and Femara. I wouldn't even consider doing an AS cycle without one or the other. They work similiarly, but the Femara may be a touch stronger and stays in your system a little longer. Both are anti-estrogens. Unlike Nolvadex, which blocks the receptor sties both of these actually inhibit the production of estrogen. In other words, they prevent the aromatization or conversion of test into estrogen from happening at all. I always also keep some Nolvadex on hand "just in case". If you are already experiencing some gyno symptoms, which it sounds like, you need to start on Nolva RIGHT NOW (and also Arimidex or Femara if you can get some).
Personally I would hit it with both the Nolva and if you can get some right away, do the Arimidex too. The thing about Arimidex (and Femara), is that as far as I know they don't cut into your gains like Nova will do if you take it all during a cycle. I usaully take 1/2 of Arimidex tab ed during a cycle (some guys who go real heavy will take one a day), and have some Nolva handy just in case the Arimidex isn't enough. If you are already having problems, get on the Nolva right now. I think it is a little better if some noticable problems have shown up, although the Arimidex will help also. The main thing is don't wait, start the Nolva right now.