I wouldn't bother with it, I would keep the alum prop, or even get a steel prop. You don't have enough HP to flex a prop that bad. A SS prop is going to set you abou 350 and its only going to get you to 38 or so, I wouldn't screw with it, take that boat through the crap, bust the stumps, hit the abuttments, and when the rest of us are whinning about 400$ props, you can laugh all the way to the bank for the extra 350 bones you saved on props. Once you start getting up over 100 hp then you start getting a large amount of flex but you aren't going to see that much.