I don't want to start limiting comps because where would we stop? That being said, I can see the tournament coming to a standstill if two teams of three healers were to face off against one another. We might have to have a sudden death clause, and I'm open to suggestion here, but if a match takes longer than say 15 minutes it would be decided by a 1v1 where the two teams picked their player to represent them.
I agree, longer than 15 mins and its sudden death, and please for the sake of sanity for everyone... If an entire team is stealth-ed for longer than X amount of time its a DQ. No one wants an entire team to just go stealth for a few minutes to respec to a high burst spec, come out, insta kill someone then go back to their other specs or w/e.