Have you tried different adjustments on the wakeplate? I have a 98 Elite-V, and I added the manual-adjustable plate last year. The 98 did not come with the plate as an option. It made a big difference in cleaning up the wake.
Try putting it slightly down. You also don't say how you have the weight distributed. You may try shifting some of it forward. If its overweighted toward the back, the wake will be washy.