Well since I can not seem to keep the Ulitmachine boards in stock and lead times are getting longer I would like to start carrying a backup (or two).
My top choices so far are SKR 1.4 (turbo?), or SKR pro - with 2209 drivers (?). With these we have driver options but I only want to support one specific combination so Weigh in with your reasoning. If the 1.4 needs this part it is less ideal, but I am not sure.
And these can also use the fancy (expensive) screen, or the regular less expensive one we currently use (which one do you like).
GRBL_esp32, if Bart is wanting to make some larger batches. (have not checked in with him yet). No LCD options you would wifi connect (??).