Boondocker,
I second Tom's comment about seeing some blades carved with the other half of the equation, wide root and more drop for greater twist. Those blades are beautiful and will really perform. I'm not sure what your application will be but they will start in a fart and will accelerate like a shot if not loaded down enough or limited with decent furling. Be careful, I carved my first 12' very similar and measured (AC frequency) verifying 800 RPM loaded in 60 MPH winds ! Couple coils came loose but the blade assembly held together, I swear by that Gorilla Glue with screws too of course. Very nice work, keep us posted. Dave B.