The config I had sent I now realize was the latest I tried with micro-stepping to experiment with noise. I prefer a little slower prints.
It is absolutely 16 teeth. As I counted to make sure. but I'll try it at 20 teeth anyway.
This is a refurbished controller board I got directly from Duet. The problem I am now having is it won't connect in YAT to get my wifi up and running. Any suggestions there?