I concur with saysitsme. I think that most APs of all stripes overestimate their edge, i.e. how good they are. It’s not that they’re playing a losing game, they just don’t make enough allowance for the impact of errors and other factors that keep their return below the theoretical number. It seems like all I ever hear are laments about running bad. I don’t think that Tommy Hyland was talking about theft, but about all the other leaks.