The maximum number of RJs in the entire NWA SYSTEM may only be 90 (of which 35 are to replace the avro85 that are at Mesaba so a NET increase of only 55) and then only increased further on a 1 for 1 basis. Replacing DC-9s with 76-110 seat jets would not allow for the addition of more RJs on a 1 to 1basis due to the "floor" limit. The four options described in the NWA contract are not cumulative. Mesa could not operate 55, and Compass then operate another 55, while Pinnacle and Mesaba also operate another 55.....

Read your own quote #3 there bud, if they don't maintain the flow up/down provisions they must reduce the total number of RJs in the system from 90 to 55. Do you really think they would limit themselves or build up the feeder carriers and then risk it all by not maintaining the flow up/down?

NWA did not allow for a 90 seat jet to be operated by any regional in their system. They may operate a CERTIFICATED 90 seat airplane but only put 76 seats in it. I don't believe you will see this happen.