Thanks.
I experimented with a number of aperatures all the way down to f11 and using HDR shots (to increase dynamic range). Ultimately the best shot of the evening was the second one of a 5 shot AEB set. I was trying to get a sharp sunstar, while reducing lens flare and get a good composition all while trying to do this quickly enough so that my fingers and the rest of me did not get too cold.
I don't have any intentions to update to the Mavic 4 Pro since I don't have enough scenic areas to justify the upgrade, but I have to wonder if the improvements in the wide camera would make the sunstars even more defined for a similar shot.
Chris