The Main Squeeze continues to develop as we do volume and flow tests to check how easy the boat will be to cartwheel, loop and get airs on waves. The results of these computer simulations is some pretty radical adjustments to volume and volume placement, as well as the rocker breaks and a radical adjustment of the "pressure edges" on the hull to help with wave separation (airs).
This is of course all theoretical, and nothing beats paddling a prototype, but the technology allows us to eliminate both the time it takes and cost to do months of prototyping work. When we finally paddle a boat, it's usually pretty darn close to final.