Man the threshold for picks shutting down is way too low. IMO if there is a full group in the zone, it shouldn't shut down or at least give a 3 hour timer instead of 15 min and if the zone ever goes above the threshold than don't shut it down. I play late night usually and am sick of finding a camp than the pick shuts down and that camp is taken in every other pick. I even had a pick shut down unexpectedly the other day and my charmed pet which I had given some -MR items to poofed. Wasn't happy.
I think it should shut down in 30 mins with 15 minutes where it stays open to get people in to save the pick.
The worst is zones like CT where you'll hit 21 players, pop a pick, half the zone picks over, and 5 minutes later one guy zones out and shuts the pick down. The guy zones back in, and the pick pops again! Repeat ad nauseam all god damn night.