Whew. No mistakes in the traces! It's a simple board, and it works well.

I tried to dial-in the fit of the connector to be as crisp as possible by 3D-Printing mock-ups of the PCB to use for test fitting. The standard 1/16" FR4 was a good fit.

There is a great library for this controller and several others at: https://github.com/madhephaestus/WiiChuck/