Today's work. the tool I used to cut the concave.the results
After some sanding and blending
lastly I made cuts to the bottom . I hope I have made a good choice.
When finished, I see this having a behavior that is positive. Water first push up a forward bow wave, the center having a slight cutting hull . The rest would act like a chine. Water pushing up and as the hull rises the after portion is riding on the center portion where it transitions to flat ,not unlike my first hull. The contour should enhance the otherwise week foam hull. This is much lighter than the old hull. It is thicker , wider and actually has more displacement. the core now weighs 11 lbs.
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