I have an F *A award seat on ORD-FRA, but it is the old F on an a 340. I want to switch to a flight with the new F, but since the flight is 6/13 so far I have no availability showing up. I expect, based on this thread, to see some F seats open in the days leading up to my flight. I'm starting on the West Coast so any gateway is possible.

Any advice for which LH flight I should shoot for (high likelihood of availability and new FC product)?

Thanks!