Its also pleasing in a way to see that such expensive gear is in no way immune to the rigours of flex and tight guiding, as you say. I don't mean to put down iTelescopes, but rather "celebrate" the fact that this is a challenging pursuit.
Slawomir, the only difference I can see in the stars is more "bloat" on the FSQ/11000 image (but man that is a glorious FOV!). Presumably more time to get the faint neb showing due to QE issues Greg has mentioned, and over that time the stars bloat a little? Perhaps some strategic masking/erosion in PI required?
I wonder if the clouds are going to tease us this weekend - looks like sucker holes likely tonight.