I know there are hundreds of pages on people trying to control flex with laminations and construction but I thought I would throw this up to see if anybody has worked with the materials (innegra, Dyvinicell, flexable epoxys)
Liquid water isn’t snow, surfboards are far thicker than snowboards. Snow rider don’t need to paddel to take a wave. Surfboards are stiff and don’t flex so much on ride, the key is dynamic flex: vibration. Search Benjamin Thompson posts in archives. There is still things to find.
Plastic fibers start to be use more often in surfboards skin, it’s a good thing for durability, not so for profit, but often not use with the right resin. Here again there is things to find.
Good luck with the project. A Sintered base on a surfboard would be interesting Not so sure about a metal edge on surfboard.
Building a snowboard that does not have a binding is an interesting idea. a few companies have done this Salomon was one and as I recall it was not sucessful. For some ideas on surfboard design you brought up Geoge Greenough as a source of inspiration. Take a look at what Tom Morey has done and also karl Ekstrom.
Also thanks for the heads up on the rest of the responses I had a feeling people have been working with the materials for a bit which works in our favor also because there is a knowlage base. As for the never ending resarch, swaylocks kills it, enjoy reading about peoples exeriments. Will post some pictures for whoever wants to see of testing, layups, designs etc soon.