I think this is a great idea. I ran events with my ls in 1.0 and we often had a situation of people having to sit out. It wasn't so bad with primal battles, but dungeon raids took much longer, especially when we was learning the dungeon and used up the full time limit. It wasn't always fair on the people who had to sit out and people would get bored and do something else, and rightly so. This idea keeps them involved, genius