I have indeed heard it, it's great. Love Jason (and Drive-By Truckers too)...He actually played this with Micheal last year (even though it's a dodgy phone recording, Michael still sounds great!).
I think if I went for earlies I'd be similar and have to bring a load of extra stuff down to make the 9 nights camping a bit more bearable.
Proper coffee and cooking camping set up etc.
I also think, and I know it's not allowed, that I'd definitely be taking a tent to set up in the main festival. Meet pals with tickets there and then camp in Oxlyers or pennards.