Actually... Turning the fan off cleaned up all those artifacts. I still have the resonant xy banding, but it's smooth otherwise. Running the test again with the fan capped at 40 now
I don't have similar issue on my prints .. I'm also running 4028 and the higher i run it the better results i get but it gets too loud so i cap it at 70%. Could it be a faulty 4028 that resonates ? but even so it should not be transferred to the print as above