via a pm, here is a take on this section 1 issue:
Scenario: 76 seaters can be "fast accessed" with a new narrow body category of B717/A319. No production balance on the way up. Get new NB and 76 seaters.
Now, the 76 seaters are here, to stay, and DC-9's (18) old MD-88's, A319, old 757 get parked.
"But there is a production balance of Mainline NB to DCI"
When does that snapshot start?
July 2014
two years to shrink, don't think it will happen?