I figure I've spent so much time collecting and processing M42 this year, it might now be the earliest M42 for next season.
Anyway, in Dec and early January before the La Nina set in forever up here, I collected quite a bit of HaLRGB data for a 2 frame mosaic. I'm still getting (more) grey hair finishing the mosaic, but here's some detail from part of the 2nd frame. I was worried about the yellow bits until seeing Marco's rendition in recent weeks.
HaLRGB 120:90:72:72:32 = approx 6.5hrs each frame (5 and 4 mins subs, some 45 and 60 secs also)
8" Newt/QHY9/MPCC/Heq5Pro/IDAS LPS
Taken from the Brissy Burbs.
Promising enough to keep trying to sort out the mosaic anyway I think.