Does it apply to modifications as well ?
I decided I wanted to mod the dob to carry my DSLR. So made up a T-Ring, modified the strut mount tubes so I could drop the UTA 35mm and modified the focusser mount to gain another 10mm of infocus. About 3 hours of workshop time.
Anticipated a clearish evening after a beautiful day and got ...clouds. Lots of them, everywhere.
So apparently you don't even have to spend money to get clouds.
Mod looks good though. I can just slide the UTA up again to regain my EP focussing range. 4 Pins to pull out to drop it down and it maintains alignment. And removed some weight as well.