I think either format would work really, the bike battle was a big hit, and got big crowds. But it depends what you want really. If you want something that shows off whats possible on a bike ( not neccessarily "pure" trials), where you've got people like danny mac/akrigg throwing in a bit of bmx and freeride style, and people like damon and tunnicliffe just going huge, then i think a bike battle style event would be perfect. But if you want to show off "trials" then maybe have an ivitational comp? maybe something like the indoor motorcycle comps, where one rider goes round 6 sections, then the next, and then after that X amount go through to a final. I dont know, there just some random things in my head lol Im sure anything would be brilliant, ad great to watch