does GH work by itself or are the effects mainly through increase IGF-1 levels? i remember reading the extreme science explanation on Dat's site a few months ago, needless to say I forgot most of it 
well, i dont think theres exact science behind it... GH interferes with countless hormones and increases nitrogen retention by itself, however i think the main benefits are from increased IGF conversion...
there are a couple guys on promuscle who claim they didnt get any benefits out of GH when they ran cabergoline concurrently... cabergoline kills your prolactin and a side of that is a strong reduction in IGF levels... so if GH and caber are combined and there are hardly any noticable benefits of the GH anymore then it most likely works via IGF to a huge degree imo...
Lol.
So 3 units 3 X a week of real pharm grade GH would do absolutely nothing? I'm new to GH but I would expect something....
well people (older guys) say pharm grad is noticable from 2iu a day upwards... 4iu gives notable fat loss, 6iu very good fat loss and muscle fullness, 8iu upwards gives real "mass gain"
with 9 iu a week you wont hardly notice anything imo... if i had cash to throw out id use at least 3iu ed, but that dosage is more for well being, not BBing purposes