They evaluate you on 8 parts of the game. The person hated my dink technique and tried to correct me on the spot, said I was raising my arm too much. I missed no dinks though. Can hit two handed roll dinks. Had zero high balls. Gave me a 3.2. Also gave my serve a 3.2 after he clocked me at 42 mph and I hit nice dipping top spin serves. Got around 4.0 ratings on everything else anyone else have any experiences with these things? #sport source