Increase the size of the area the battles can take place in. On paladin some nests are near impossible to pull because by the time you get the mobs chained and lined up against a wall or something your out of bounds. . . or get hit with knockback, and go out . . .

Then you can't re-enter for ten minutes.
So yea, please shorten re-entry to five minutes, and increase the area the fight can take place in.

Also, 5 seonds is way too short, ten seconds would be a fair alarm system to players to get back in the area to battle before getting the boot.