Greetings all! I have a 2008 2320SL powered with a Yamaha 250 outboard. The motor has 575 hours on it, and I bought the boat used. I am only getting like 1.8 mpg fuel economy and was wondering if other 2320SL owners are noticing similar numbers. I even swapped out the prop for a new 4 blade stainless prop with the proper calculated pitch. Any thoughts or recommendations? Thanks!