good thread...
on another not iv also heard from most guys that splitting up your dose is best throughout the day. the few ifbb pros that are open about their PES use claim they do it that way as well. By no means do I believe that because an ifbb pro says it its the best approach but seems logical as natural GH rises and falls throughout the day. Also I just Recently listen to an interview with rich piana and ric drasisn where rich claimed he got his best result from shooting 4ius of GH every 4hrs in between meals. He didn't say how much in total he was taking but probably anywhere from 12-20ius/day depending on how long his day was.
the interview is on youtube if your search rich paina and find the rics corner interview titled gh igf1 and insulin.