LOL, thanks for taking a stab at my DSLR version Rob.
Looks like there is some amp glow along the bottom too, I think I know how to remove that using Startools wipe...
There is soooo much noise in the DSLR compared to the cooled QHY, I did take some darks later, but the chip temp was all wrong so I might try some more to match later once I can get the hang of removing the gunk such as sky glow, vignetting and amp glow.
Thanks for your efforts
Cheers
Fox