Good effort anyway Ivan, the detail is there just hiding a little that's all. I'm hoping tonight's the night for some good imaging. Look forward to seeing some more, good luck and clear skys.
I had another look at this data -- and found that Registax 5 actually seems to do a better job of stacking than Registax 6 when dealing with poor data.
Here I used a single big alignment box, this is luminance only. Probably not going to spend any more effort on this data, but maybe interesting to know in case you need to capture a specific event in poor seeing conditions.