[RustyBrooks]

Have you read both of Harrington's books? He has suggestions for hand modifications as your M changes. In particular treating it as something that modified VPIP isn't right, because it's not the percentage of hands that you should be playing that changes, but what *types* of hands. For example, as I recall, small pocket pairs can basically not be played when your M is between 5 and 10. Below 5 and you should be pushing if you're first in, above 10 and you should be limping after early limpers or calling moderate bets. Below M=5 your VPIP actually jumps considerably because you'll be pushing almost any A high, any pocket pair, and some more random hands in later positions. (The specifics here might be wrong, it's been over a year since I've played NL holdem tournaments).