Thanks for the replies and the link to the non-insulated crimps, but they only go to 18 gauge and I'm using 16. You would need to grind/clip off one side to get a regular #6 narrow enough.
There was a picture on this site of someone using blue crimp spade lugs on a controller that he said were 'close' spade lugs. I didn't think I'd have a hard time finding them, so I didn't bookmark and totally forgot the thread. Now I've been all over looking for them. I can just use regular spades for the switches and use the plates on the controllers for straight wires.