I have an '05 Rinker 192 with a 4.3L Volvo SX. Went from a stock 14.25 x 19 aluminum 4-blade to a Precision Props SS 4-blade 14.25 x 18 after experiencing significant ventilation in tight turns while tubing. Ventilation gone, hole shot is just incredible but the WOT is 5200 RPM, way more than...