There is no need to nudge at all. I have provided code and done extensive tests to demonstrate accurate centering with just slews and plate solves. It is trivial to implement and does not add state to be tracked. It has many advantages over the sync approach and no disadvantages I can see.
I can provide a link to the thread but Jared should know about it.
There is no fundamental need to associate syncing with centering. It just happens to be the way sgp implemted it.
Frank