assumptions
If play all cuts SCORE in half; many variables, then you need to be able to play twice as fast at the heads up table to break even.
The break even number is possibly 3 players & dealer compared to 1 player & dealer.
Just watch the table a few hands & if goes negative or u think you can play >2 times faster then go play heads up.
Of course be prepared to be joined:whip: by other players.