I'm now told this is called a "wedge". I'm still looking for some thoughts on this. The new motor dynod at 460hp and it's not pulling a 25p prop. I'm experimenting with props that a buddy has, so maybe it's my first prop choice. I'll try a 23p when it stops raining, but that definately won't give me the top end this motor should give.
Below are some drawings. I'm wondering if it's laid up like the second pic or like the third? If it's like the second, then it couldn't just be sanded and gell coated, and would end up being more work than I want to put into this boat.