I think missing three turns in a row is quite forgiving. What are others thoughts on this?
I'd be ok with if you miss two turns in a row, you are done; or 5 total over the course of the game. (obviously currently existing games should start the count at 0 at time of implementation).
The one thing I'd worry about reducing to two misses in a row would be possible abuse in team games. Perhaps there is some sort of delay on transferring the territs from one player to another? Is transferring a deadbeats territs even the best way to handle deadbeaters in team games?