[Putershark]

I would check for water in the inner hull and the remote possibility of a prop that is creating too much stern lift... Lift is the one thing that many people forget that the prop also creates and at 5900 RPM it may have too much bite...

I would also look into how you are loading the hull and see if you have too much weight forward of the console ? Also how does it preform when you have less than a 1/2 tank of fuel or the live well is empty?