But while this essentially "works" it doesn't take away enough material at a time. It would take all summer to cut enough strips. So I'm going to make a different jig for my router, which can take a way about 6 times the material at one pass. More on that next time.
I also figured out an elegant way to draw a curve for me to guide the curve-cutting. I made a giant compass out of a strip of wood and a screw.
This lets me draw a curve that's symmetrical and will be the same on all pieces. Then I just need to get my act together carving it out!