With the latest AMEX sync offer from Air France, I was thinking of buying a ticket through Air France, but I want to use a GUC. If the flight is Delta operated, I should be able to still apply the GUC no matter what ticket stock it comes on correct? Thanks for any insight on this.

Separately, was going to use AMEX pay with points (I have the Business Plat), I think this would still trigger the AMEX offer since they charge your card and then apply a statement credit later. Any thoughts on that?