I think it's time I just sit back and wait, considering that today the president of the local woodshop where I bought Nigel has stepped and contacted General... he says give him a couple of days to see what he can come up with, so maybe I should do just that. Anyway, I'm almost to the conclusion that with the variations in speed for no known reason, chatter when the spindle is just being moved to a next vector to start cutting, and totally random noise and chatter locations, it very well might be the software or the controller, and I can't do anything with either of those without General CNC involvement.