Dennis stripped the fiberglass off an old board and then shaped it using my tools. This process would be possible with an old polyurethane / polyester board that would allow a net shape for a wakesurf. PolyU sucks up water, so an old board with brown sections of the foam is probably ruined. However, one that has damage in the nose that can be shaped out is a prime candidate.
This board was quite thick, so we were able to reshape the rocker and still bring the thickness down.
Now it's ready for 'glass.