Steering and pump nozzle

I currently have a limited SN superjet that has a Coffman pipe, intake/single 44mm carb pkg, interchangeable head w/165psi domes, lite flywheel, aluminum water box and stock aluminum prop. Due to low speed cavitation issues upon wide open throttle acceleration I ordered both a solas I and J impeller. Installed the I prop to start with along with a pro watersports pump stuffer and ride plate. I have not ridden it since installing ride plate,stuffer and prop but wanted input about steering and pump nozzle improvements?? Also what is the best sponsons(front,mid or rear) and brand to use for closed course racing. Thanks
 
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