I bought a 95 Baja 208 Islander this spring, I live in Colorado and use the boat at about 4500 feet elevation. The guy I bought it from in Kansas gave me 19p and a 21p stainless props. With both props it seems to cavatate and over rev. The question is, what is the best prop for me??? speed would be nice but what I need is the best pulling prop (for skiing) that still will not over rev. The boat weighs 3800 dry (I assume around 4800-5k loaded) and has a stock 7.4 carb motor.