Originally Posted by
golfr
I'm talking about adding Premium Select to an old plane just so that we can't use RUC/GUC to upgrade to Delta One from Main Cabin. Just booked JFK-SFO and they haven't added premium select to this route yet.
The PS seats were already added to the 76Ks so they could do transatlantic service.
In any case, there are clearly commercial reasons unrelated to GUCs/RUCs for them to add PS on the premium transcons.