Upon pulling the caps off, the switch for the letter F broke. Something of the plastic gave in and broke off, and it looks unrepairable. I'm considering swapping the switch with one of a key I don't use (SCROLL LOCK or PAUSE/BREAK come to mind). I wonder if it's as simple as desoldering the two switches and swapping them.
Also, there's a dummy key between CTRL and ALT. I have the same on another keyboard (a Shi-Tec) and it's very convenient, you kinda get the three modifier keys that are there on modern keyboards. The wiki says:
Checking with Karabiner Events (on Mac) it shows no event when pressing that key. I wonder if it can be made functional? I don't mind hooking it up to another key (again, SCROLL LOCK or PAUSE/BREAK) and then through software mapping it to the key I want (OPTION). Solder some wires to those keys? Other tricks you folks can think of?... the switch is electrically connected to the controller, and appears to have just been not used