Okay, so if you asked me six months ago, I'd agree... As much as you can afford. But, the more I learn about your body's ability to utilize the exo. GH, the more I think TOO much is unnecessary. For a bulk, here's what I'd do:
7.5iu GH/day... 2.5iu AM (as early as possible, either do your fasted cardio or just don't eat for 2 hours if you can), 2.5iu pre lift w/ your insulin (humulin would be my go to here), and 2.5iu pre bed. You COULD up the pre workout hGH if you like, but, if it's quality GH, I think 2.5iu is okay.