Hello, first time owner and Ive got a 96 120hp sport jet. The time before last that I took it out I was getting 42mph steaedily. I blewoff the ride plate later that day and recently repaired it and sealed it with silicone. When I launched the last time I couldnt get past 32 mph with just my wife and I. It also took much longer than usual to plane. At WOT I am running at 52rpm. The engine sounds like its running fine, and it starts right up consitently. Is that drop in speed normall, or is there a series of diagnostics that I should perform to ensure that I get the best performance out of my boat. Thanks for the help.