The weird edge your referring to Dave, don't forget jupiter is showing a slight phase to us, so that limb is in slight shadow. I think that has a lot to do with it..At least you captured Io....I could just see Io on the laptop every now & then because of the crap seeing conds.
Yours look good to me Davo.
Robert. Jury's out this end...not sure what to make of that 'detail'

I have more AV's to process...that should tell us if it's detail or sensor 'gunk/dust' or from processing?
No Mr. Ving....actually there is dust on the sensor, but it's on one extreme edge....I always make sure I position the/a planet where dust won't interfere with the image. (In the centre)
Thanks guys.