Pat, any chance of a link on that?
My first thought to answer your question was... Yeah, carbon fiber, used all the time. I understand you wanting to play around with new ideas, and thats fine. But ( you knew there was a but in this ) why go through the hassle of using sinew and wood ( very difficult to do ) on something that is... well, not sure how to say it really. Folks use sinew and wood to avoid using modern materials is all. So if you wanna go with modern, go all the way. Try something new. PVC belly, with balsa core, and a matrix of old blue jeans soaked in resin for the backing. I wonder about using a matrix of bamboo leaves that have been retterd into fibers as a backing soaked in glue... That would be neat.