I got a tip from a mate that there was a big prom on Friday, so captured this after work. Technobill was already onto it

.
I tried DaveG's advice and stacked without optimisation but I still get the lines

. I have tried to remove them in PS, but if I get rid of the lines I get rid of the detail too. I might try a merge on the original stacks, then sharpen in PS. I found that Avistack produced the same lines as Registax 5.
Captured with the DMK 41 through the ED80 with SM40 and B1200.
Al.