with the 8 man raids a easy way i can think to do it is a Roulette, remove the exp from mobs, and you can only get the bonus from completing but if you leave you lose the bonus, and if vote dismised 3 tmes, you lose that bonus, (trying to stop people from abusing this would be difficult) the bonus being a major EXP boost and gold for leveling. at level 70 it grants 30 tonestones of creation, once a day.

as a way to avoid people crying about the levels make it to where the roulet matches up the 8 people and unsync them, so they go in as the level they want,

this could help do old raid content.