i have a 2000 model xb 2003 with a 2000 model mercury promax 225. it is set up with a Hydraulic allison jack plate with a total of 14 and half inches of setback. i have tried a 26 trophy plus 4 blade, a 27 mazco, a 28 allison cut prop, and a 29 hoss triton prop. i have not found one yet that will not turn up to my rev limiter. it is factory set for 6250 rpm. the fastest i have been able to get the boat to run was 87 with the 27 mazco. i have just borrowed a 30 mazco and i have not been able to try it yet. does anyone have an idea what kind of prop might be better for my setup. i want it to run out on the top end.