cavitate

First off- bought my Islandia this spring, and I have to say its been the best purchase we have made as a family! It has truly been a summer to remember as a family... Okay so lately, when I launch the boat and idle out past the wake zone and put it under power it cavitates. I get 6k+ RPMs...

Here is my problem... I have an 06 seadoo Wake with 40 hours on it. I have had wear ring problems since day one. About every 8-10 hours the seadoo starts to cavitate and loose top end speed. Every time we take back to the dealer they say the wear ring is shot. We get it replaced and it...