C+ on AF or KLM+ as plat?
I'm trying to figure out the same thing for flights to VCE with a return from ZAG. If I fly on Delta metal as a platinum, I could get an immediate C+ seat (if available). It looks like Air France C+ seats are actually wider. If I fly AF, do I pay for their C+ seat? How would it work if I fly a KLM plane and want a C+ seat?