Looking for 2 seats in F or C flying SHA/PEK on 3 October.

Using KVS (and checking both ANA and Sabre) I can see 2 F seats on FM9101. ICC says it can't see any F or C availability on direct flights on that route.

There was a post last year saying that CA (and by extension FM?) availability is shown wrongly on most methods and recommending signing up to the CA FF program. I have tried that without success. Is there a more reliable method? Can anyone see other F or C seats on this route?