I can already see that I'm glad I have a copy of Chainmail on the way, as there are many references to the rules that started it all. Maybe Chainmail has a reference to the size die one rolls to determine HP. From the example shown, the range rolled falls from 1 to 6, so a safe assumption could be made that 6 sided dice are rolled, but I have yet to see it spelled out.
Advancing beyond name level is explained, with the painful exception of experience points required beyond name level.
The AC charts cover from 2 (plate and shield) thru 9 (no armor). If magic brings the AC below 2 one can extrapolate easy enough, but it is a bit of an omission (at least in retrospect). Hmm, or magic doesn't change the AC, just the base scores to hit, but that's the same thing but more complicated.
Saving Throws: Everyone advancedon the same table, just at different rates. Just like the Combat Charts. But then shouldn't the charts have been set up in the same fashion? Levels from top to bottom and save type from left to right would have worked just as well for the Combat Charts as they did for Saving Throws. I know, Monday Morning Quarterbacking and all that jazz ;)
More reading ahead for me. Later