Good reviews Greg.
I don't agree about the KAF8300 exposure duration. With both the TSA and RC I have been doin 20 minute subs on lum and blue for some time now. In particular the TSA never seems to bloat stars with this sensor. The RC does on brighter ones but some min filtering gets rid of most of the issue. My recent Corona Australis shot is done with same exposure lengths and I did not do any star size reduction. So it might pay to revisit this with your camera.
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