IndustryStandard Bit late on this but Skyline is good. 300 or so people in the Sky bar of the Raddision RED. The room & ticket packages are worth while imo as it includes 2 tickets and the hotel stay.
Graham who promotes it is also manager of the skybar too.
Last entry has become 4pm, starts at 12 or 2pm usually. There is a luggage room if you can’t check in yet (they do try and check event go-ers in early.
Ballsache to get there that early on a Sunday from down south if you don’t fly. But train up on Saturday and stay in a cheaper hotel for the Sat night does you.