The 3:1 check valve, while asinine, still doesn't allow an increase above 255 70-76 seaters. All it does is allow 70's to be parked and exchanged for 76 seaters but it still has to comply with the 255 limit even if mainline grew by a thousand planes (as if).

There is zero reason to allow more large RJ's. I doubt the company is itching to park 70s just to convert then to 76ers anyway. They want more 76ers and an increase to the 255 cap. No deal. They already have an unlimited amount of 76ers they can fly. Right here at their own airline.