Jared,
I never used slew on the basis that I thought it was just that, it will not use plate solve to get within the specified pixel margin one has defined.
So if slew will get us within the margin we have specified and uses plate solve to get there then I guess noting needs to be done on SGP side as this gives us a way to plate solve without sync ... but I was always under the impression slew, was just slew ...
Thanks,
Yves