Hi Firelier, awesome area your skating. Your no plans approach is commended, more fun and experimenting and mistakes lead to success. Impressed with professional design. Since speed is main objective maybe lighten frame w/ carbon and maybe increase sail area a bit. Increase the l e curve for more lift out of the slush. A hybrid Ridgid and inflatable tube design might get you the benefits of both? Your definitely out performing the 2x inflatable foil that are not as user friendly as your design. Too much lift seems scary on skates. A handle or strap on l e might be HANDY. Let me know if you make another design. I am making a quad sort of like the Fulcrum. Good luck and keep on experiminting