i'm doing 6 on and 1 off. however, i think i'm going to go to 7 on. gh has a half life of 2 hours. after that your body will begin to produce gh natually again. so you don't have to worry about it shutting down unless you are doing huge amounts.
some will tell you not to inject before bed. i inject 3 times per day. 1 when i wake up (lowest time during the day for natural gh levels) 2 post workout, and 3 before bed. but like i said, some don't like the before bed injections. they like to let their natual gh do it's thing because that's when it will be highest.
my thinking is that sleeping time is when your body is repairing your muscles and you are growing, so i want lots of gh in me during that period.