there is a "reverse rotation"function in live pro.
i think it is the tab key or one right next to it.
i like to use it to syncopate the movement and give it a "more live" feel.
you can really see the difference from the timed tap synch alone.
i rock the scans above the crowd and it really draws them in.
it's like the laser becomes more of another person dancing with them and i think it gets them more connected to the show.