Excellent reference, Bill. I don't know whether to be gratified or disappointed that someone has actually been thinking along the lines of my own daydreaming. I was tending to focus on the difficult idea of creating curve along the keel line. TRAK changes the shape via the gunwales. One may wonder how much of that curve gets in the water. I expect the need a lot of curve to get a little effect. If the keel line could be curved, less warp would be needed. Of course, I've also been trying to concoct the most minimalist ideas that could work. Which is one reason I've considered the much simpler idea of creating bulge at the stern to give light trim effect.

: Sounds kinda like a Trak. Do a web search for Trak kayaks.

: Bill H.