Peter - Try raising the motors a few holes before switching to different props. I had a similar porblem when my motor was mounted too low. This photo was taken while the boat was coming out of the hole, but you can see the spray. I raised the motor 3 holes and I picked up 400rpm and there's no more spray. Mirage Plus or Rev4's will help. But . . . moving weight forward, bigger tabs, and raising the motors will probably make a bigger difference.
