Which MGM casinos have this specialty slot rule? I play at various MGM casinos in Vegas (though not all of them) and I've never seen any point multipliers or anything like that.

I am going to have to check out Cosmo and see what I can get from them. I wonder if the change in ownership is going to make them more generous (to try to get more players in there) or less generous (to try to make more money per player)