Very nice, Mike.
They look a little dark on my screen, but perhaps that's just my lappie?
Like my Jupiter images of late, there are a few rings there at the limb.
I note your comment about having to keep adjusting the planet to keep it in the FOV. I'm doing a lot of that too. I wonder if that's contributing to the onion ring issue?
It reminds me I must spend some time on my polar alignment at the beginning of the night.
Cheers