So my band Shadowmind got booked to Øyesletta Live 2012, where we will play on the same stage as Hammerfall and Amaranthe, and the stage is 10x30 metres. We are used to only playing tiny clubs where we barely have and space at all on stage, and now we're going to play this seriously huge stage. We've already decided to invest in Line 6 G30 wireless for guitars and bass. What do I need to know about playing stages this size? Anyone got tips to share?