I don't think either one of these players has given the other a walk heads up yet. There has usually been a small or min raise from the player on the button, with the other guy almost never folding preflop. So we're seeing a rainbow of flop colours and textures, but most of the speedily-played hands aren't getting past this point. With almost no dwell-time being used up by either player, they're fairly rocketing through hands as fast as the dealer can deal them.