Quote Originally Posted by Rolder50 View Post
The more logical way to handle this situation would be to make it challenging enough such that chain pulling is not possible because you will die. Then it'd be up to the group's skill for how many groups you can pull at once.
It wasn't possible a lot of the time and the party did die and the tanks would just keep trying to do it anyway. The walls are necessary to keep a lot of tanks from trying to pull more than they have any business pulling.