I reckon Rob its time to take a look at the cooling and maybe just check your collimation. I just don't see how I got great seeing at my place and you are no more than 20km away and you got bad seeing. Perhaps it was due to the turbulence caused by the hills face and the winds causing eddies as it passed over me and toward you. It was quite still that night though. I just would have expected you got similar conditions to me.
Nice result all the same.
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