Hi <br />I have a 23.5ft Wellcraft 236SC Eclipse with 454/7.4L. Bravo 1. The WOT is 4650, the boat weighs 3875 dry and the current prop is 15.25" x 19 pitch (3 blade stainless mirage). The manual says 51mph at WOT, but the speedo says closer to 60mph. I use this boat for everything: skiing, wakeboarding, cruising and speed.<br /><br />My questions are:<br />1. Can I get more top end speed with a different prop without damaging anything?<br /><br />2. When pulling a wakeboarder at 18-20mph the boat alternates between plane/no plane making it impossible to maintain a constant speed. Will a different prop help this problem?