And they shouldn't call what they can't see, or call what they think is about to happen. But they do.
I really like the 2 shots and the ball idea because their own team mates would be all over them for trying to flop.
I think you need to go after their playing time make a flop worth two personal fouls and it should stop. Just imagine Harden with a foul in the first quarter gets hit with a flop foul and now he's sitting the rest of the half, or someone getting a flop foul with 4 fouls in the 4th. Playing time gets the egomaniac player, most don't care much about their teammates but take away mins. (stats) and it should end pretty fast.