I like this. While I don't play old school rules anymore (though I run old school campaigns) this was curious to me. It does what other OSR games do not: present something orginal instead of rewriting the same rules for the umpteenth time. Is it what Gygax would have done. Who knows, but probably not, though some seem like good guesses based on what he was writing otherwise. If you want to tun old school rules that have a different take, give it a try.
[4 of 5 Stars!]