Great piccie JJJ
I've been thinking, you know how sometimes with the Gstar you get that fisheye look with the stars (the black rings around them). I have a feeling that it may have something to do with the amount of integration being applied to the image. It's like the stars are being overexposed. Might pay just to back off the intergration a tad (say, from x128 to x96) and see what happens. Just means you may need a few more images to stack to bring out the data. However, I think you're pretty close with the amount of gain you've got in the piccie. It's a lot smoother than normal.