Usually I play super tight with an M above 20, then loosen up slightly with an M between 10 and 20. With an M between 5 and 10, loosen up greatly. Raise in late position with hands like king ten, queen nine, jack ten. With an M less than 5, you are depsperate. If my M were 4.5, I would still fold hands like ace 2 offsuit in middle or early position. If you're M is less than 3, you are in late position, and its folded to you, go all in with anything except 2 low unpaired cards. Try to steal the blinds of stacks with Ms between 7 and 15, because they will be more cautious than a small stack or big stack.