Hi guys… hoping i can get some answers here. I own an 07 2320 with a yamaha 225 4 stroke engine. I had a friend ride the boat with me and mentioned that I may need to re prop to get better performance. Im pretty sure it has a prop from the factory. I didnt pull it off to see the numbers on but the only markings i could find were "17-T" for whatever that is worth. Here are some of my numbers; Redline/Max RPM: 5500/5600 with speed of 34-36 mph fuel burn around 1.4-1.5 mpg Average running: 5000 rpm, 27mph, 1.6 mpg… Seems like no matter the load or how hard i run her (weather dependent) I always average 1.6 mpg. I was told that the motor is suppose to red line at 6000 rpm. Can anyone help shed some light on this? Your input is gladly appreciated!