Starting with Millennium green density foam and a 3/4" cedar stringer, The Curves seemed to fit the length and width well but I can go longer or wider. Within the outline I managed to fit full volume with a slightly domed deck, and a thinner rail that is mostly down with a slight bevel on the underside.
I thought a lot about what fins to put on these and settled on some long base low profile, single foiled twins. The depth of the concave and foil on the tail almost make going fin-less an option. The length of the base should provide plenty of drive.