Best Light Frames option - Astrophotography Stacking

[AstroEm]

Up until recently - I've been looking through each of my subs and removing any that are no good before stacking.  However, today - after doing that - I also decided to select a best frames percentage with the expectation that that would remove any further subs that were no good.  I went with 70% best light frames but after it stacked - the number stacked seemed similar to what I'd previously stacked so I went through and counted them all.  All the subs I'd kept were stacked - rather than only 70% of them...am I misunderstanding this option??  Or is it not working as it should?  This is V1.  Thanks

[Lee D]

HI @AstroEmWelcome to the forums.

Would you be able to do a screen recording of your workflow, just so it may be confirmed.

Also what type of files are you using RAW, JPEG, TIFF?

[AstroEm]

Thanks Lee - Typically - when I did the screen recording it worked fine.  That was just on a small stack.  I'll do a proper large one with multiple groups and double check.  I'm using .fit files.  And doing callibration frames for each group as well...I assume that's the correct procedure...  Thanks!