There is really not much you can do to a Wave to tune it. The biggest tuning tip is to use a 10-hole forestay adjuster, instead of the 7-hole. That will rake your mast farther aft and put the load more over the skeg and rudders, thus allowing more underwater lift.
In flat water you can sheet harder and flatten the sail more, while in heavier seas, you need to ease the main a bit to make the sail fuller and drive the boat, rather than pinch.
Main thing is to be sure the backside telltales on the main are aboaut 9" aft of the luff and they are always flowing. You can put another set about another 9" aft of that and they should show a little stall. It would be nice if the front side telltales flowed as well, but the backside is the most important.
Also, for highspeed fun take a look at the Super Wave elsewhere in this forum
Good luck,
Rick