Well, I don't know 100% for sure if this plan will work or not, but I think our CS&S Rep is confusing deplaining early and boarding in the middle of an itinerary. Let's say you have a pnr booked from DEN to SFO with a connection in LAS. The system puts all of the airfare funds for the entire trip with the DEN/LAS leg. The only funds associated with the LAS/SFO leg are PFCs and segment fees. If you try to board in LAS without boarding in DEN there won't be funds for that leg. (Yes the funds will be held in the system for you, but with the way our airport ticketing system works--or at least used to work--the LAS station can't readily access them. On the other hand, if you board in DEN and deplane in LAS without flying to SFO, we do allow that, and since the funds are held//pulled in DEN, there is no problem. Of course, you wouldn't be able to shortcheck the bags to LAS, but if you only have a carryon, that is no problem.