I spent three weeks in Durango, CO this past January, working with Rich from Upstream Boards. While there, he and I decided to design a board that would work well on flat water as well as class II whitewater (certainly some of the more adventurous athletes DGO will take it on more difficult water). It was a total redesign of a model from last year called the 32nd Street. It is named after a stretch of water on the Animas River which sees both serious athletes and casual cruisers. And, it is often one of the only pieces of open water during the winter.
The time lapse video embedded below shows the entire process from design to first run on moving water. The camera equipment that I had during this trip was pretty cheap, but the video still gives a good overview of the process.