I have a Merc 150hp 4 stroke on my Sabre FTD and with 2 guys, & a full tank of fuel I have seen 62.2 mph on the GPS. For my situation the fuel mileage is a wash. I just dont run miles on the lake. I do drive Miles to get to the lake. I need a Hybrid to tow with. LOL!!! If I buy another boat I will more than likely go with a Pro XS, but I am sure the new Yammy is a nice motor.Dan