Well, I had not one but two bad potentiometers, and there were three customizations I needed to make to the software for the keyer to work the way I expected, but I've got the speed control working and all of the memory buttons working and the two different PTT lines working.
What isn't working? Well, I destroyed one of the buttons when I recabled it, so I need another momentary contact switch. I don't know if I'll replace it. I mean, 11 memories is almost exactly as good as 12, right? I'm never going to use them all, after all.