Great find and post, Bio. I interpret his "600 milligrams of Winstrol, I think 100 milligrams a day of Winstrol tab" as a clarification of the prior part and not an addition to it. Basically, I do not read this as 1.3 g/w of stanozolol, half orally and half injected. I read it as he took 600 mg of stanozolol tablets (he probably took Sunday off from everything for a break; like most still do).
I think assuming 700 mg/w of testosterone is probably too high an assumed weekly dose of testosterone for that era, that era being characterized by the view that testosterone was a "dirty drug" but having learned of its essential place for synergy and sexual function after earlier trial & error. But fair to you point, we'll hold it at 700 mg/w. So, when I do the math assuming, generously, 700 mg/w of testosterone, I get 2.3 g/w.
I think that his low GH doses make a lot of sense for the era, considering that it wasn't until 1993 that the medical conditions approved for the use of rhGH (the E. coli method only having been formalized in 1986; so still early days) expanded by one (1) to include chronic renal insufficiency (and of course childhood GHD). Nowadays, it's far more widely available, being used off-label for "anti-aging" and adult GHD.
He might have been confusing mg with IU, though (1 mg = 3 IU GH).
I anticipate now that the high dose guys will pile on, I'm naive, etc.
I think (opinion) that he probably used more like 1.8 g/w (<2 g) - in line with this discussion and his stance (that doses are way higher now than they used to be). I'd think 200 mg/w of testosterone is closer to what he probably used as we know this was common; as was 2-300 mg of Deca, during this time, for synergy and to keep aromatization low; but with heavy reliance on synthetic nonaromatizable stuff. These guys didn't like the bloat and didn't have effective, if any, AIs.
At the end of the day, would this really shock you? That guys at this level are more talented and therefore need less drugs than you?!