I'm not sure if people aren't clearly seeing the rules are something, but the rules are DIFFERENT than the regular tour and a lot of people seem to be missing them. These are the two key that I've seen:
1.) When serving, you must move all the way in to the center at the beginning of every set in your first service game. This doesn't mean serving from the default position like in regular tour. It means moving ALL the way in.
2.) No power slicing, charge slicing whatever you want to call it. Control slice is fine to my knowledge but no power slicing. You can clearly tell the difference when the shot is hit.
The thing is, like in regular tour these aren't "Cheese Suggestions" or what have you, they are rules and MUST be followed in every single match. Really more than anything I've seen issues with players not moving in on serve. It's actually happened in the majority of my matches.