1) Great news about going to see 'The Rev' Dave ! I saw them about ten years ago at Birmingahm, and they were indeed "Good Ol' Boys" ... :D
2) Pink Floyd ( 'The Wall' and 'Pulse' tours ) made Earls court sound positively intimate. Having said that, all the hanging 'Hammer' Flags, motorised hardware - and sound engineering technology they used would probably have tamed the Grand Canyon ! :)