My first Roo so explain this to me if you can... I thought Sunday's headliner is unopposed and play from 9-11? So would Umph would still be during the day wouldn't they?
Ween played 7:00 to 8:15 last year with Dead & Co starting at eight. The sun is starting to go down at that point, but it's still a let down as the set time would have a very definite end as they start closing off the rest of Centeroo during this time. I would not expect them to keep it open longer for Umphrey's to jam.
Ween wanted to play longer last year and they wouldn't let them.