I need a new propeller for my H37C. Will be a three blader, either a feathering or a folder. Flex-i-fold recommends a 15X12 and is around $2000. However, I do have the opportunity to purchase a used 17" Max prop for around $1400. The Max's pitch can be adjusted. My concern is the larger diameter. I do have ten inches between the shaft and the bottom of the boat so clearance is reasonable. Question, then, is what are the consequences of going with a larger diameter assuming the pitch can be reduced enough.