There is a units setting on the website.. It is called Meters, Feet, CFS, and CMS so far others may be added in the future.
I believe you are asking for a conversion tool. Head up to Whistler and when your getting beta from the locals that really know these runs and are experts, ask them to convert their accounts and experiences to cfs for you. "Wait a minute" they would say... "aren't you that guy that voted yes to close the Ashlu?"

It ain't gonna happen so why should we start referring to them differently than the experts and locals?
I am against using a different method than the community around the locale. That way when your there visiting them and in their backyard you can use their system and not complicate things with conversions and calculations.