This was a mess this morning at SAN. Everyone who checked in yesterday has the old group numbers so about a quarter of the plane boarded when Group 1 was called. Then Group 2 was skipped and they went straight to Group 3 so EXP who actually followed the order got shafted. Eventually it may be an improvement but so far the rollout has been less than impressive. And hopefully training can be provided to the gate agents on how to count to 10.