Took the bait today, CDG-HND for 2010 CHF (I flew from GVA)
The underlying ticket was an C award. I decided to take it as I only paid 30/40k miles for the segment thanks to the free stopover benefit. First time in P with AF so pretty excited.
I also just realised C cabin is probably oversold. Now wondering if I would have a shot at free upgrade as an Ultimate, but oh well