Originally Posted by
emma dog
I think you reversed RUC and GUC in the above. Also, we have plenty of examples of sloppy copy that doesn’t reflect actual rules, so we’ll have to see.
I'm also reading it as GUC implies PS at booking if a seat is available while RUC requires upgrade inventory. This would be similar to the current rules for buying PS on international itineraries, using a GUC, and getting FC on domestic connecting flights if a FC seat is available (with n o upgrade inventory requirement).