I'm flying KLM YVR-AMS tomorrow and I'm Delta Silver Medallion.
If I fly delta on transatlantic flights then I can take 2 bags 70 lb each.

KLM website says if you fly USA/CANADA-Europe you can take 50 + they will allow you extra 5kg if you are FD Silver.

Will they use the same rule towards Skyteam elites? My bag turned out to be 70 lb and I wonder if KLM would want to charge me for it. If they do, how much for overiweight?

thanks