I moved my Evinrude 35 HP outboard (E35ECTS) to a new hull. It is equipped with a 10 x 13 SST propeller. At wide open, it is making 5000 RPMs. The midrange is 5500 RPMs. OMC offers a 10-1/2 x 11 SST propeller. Is this propeller a good idea or should I sit tight with my 10 x 13?