It would be useful to filter the HUD stats based on each player's M-index. I think this is the reason why the HUD stats are so much less useful for tournaments than for cash games (as it is now). If there is a shortstack who pushes five hands in a row to pick up the blinds and two orbits later he does it again, and I don't have a huge sample size on him yet, my HUD stats would scream that he is a maniac while he is just short. It could be like you could set up rages for the M-index and once the M of a certain player changes, the HUD stats would update accordingly.