Hi all. I was able to test drive a 2013 2550 RCB that is loaded. This tritoon has the esp package and I was blown away with all the advancements that have come to the tritoon since I last entertained buying one. The options, floor layout, amenities were all top notch and I can imagine owning this boat as my 3 kids grow for years to come. Now we come to the only problem I had with the tritoon. When I had the throttle most of the way down and was traveling between 30-40 mph everyone on the boat had smiles ear to ear. However, if I put the rpm's into a range that would not suck up all the gas, (3000-3500 rpm) the speed dropped to ~20 mph. Today was hot and humid on Table Rock and at 20 mph no significant wind to cool us down. Also the fun factor/perception of speed went to yawns. In comparison I have been test-driving a 25 foot ski boat that at the same rpm gives speed in the 35 mph range that gives us the feeling of cruising fun. I hoping it all comes down to engine selection. The engine on the 2550 is a 225 hp Yamaha sho. I know that there are 250 hp, 300 hp, and 350 hp engines. After speaking with our salesman he stated that they could swap out the engine it that is all I need to be pleased with the boat. Here is my true dilemma, the gas tank on our current boat is less than 30 gallons and if I cruise at 35 mph for the entire weekend my family is out 100 dollars. If I have to run the 225 hp engine at 5000 rpm to just cruise around the lake, I will be out ~400 dollars a weekend. I think I need a 300 hp engine to achieve an average cruise speed that makes me enjoy my time on the water. (Especially if I can easily achieve it with the competing ski boat.) I know some people will say if you have to ask about gas you can't afford it. Well I think that's hogwash. I can afford it, but if I can just swap out the engine and achieve all I want and not raise my gas cost by a factor of 4, I will probably be a much happier boater. Thanks in advance for all input.