Thanks, I was just curious. I have to believe that with a foam core yours would be much, much lighter than mine.
I think if a person was inclined they could use the same technique I used to mill a foam core. I think you would just want to use a full face respirator because the dust would be even nastier than the 25 Lbs. of white oak dust I spread all over the shop.
I don't have any point of reference with monohulls, but I suspect that a balanced rudder is also faster in light air. The lower aspect ratio wouldn't stall as easily and may help prevent overcorrection that wastes boat speed.
