Best way to identify counterfeit equipment of any kind (skis, watches, pocketbooks, DVD) is to call the manufacturer of the item and ask if they have any kind of corporate security person you can speak to. Tell them you think you might have a counterfeit copy of one of their products.
If there is are any counterfeit skis anywhere, they'll already know about it and will probably be glad to tell you how to identify a counterfeit. I also doubt there are any such things out there, however.
I know that the manufacturers of some upper end clothing, etc are very tenacious about going after counterfeiters. I've had some dealings with these people myself (on the honest end). Rolex will send out a rep 24/7/365 to almost anywhere if there is a possibly legitimate report of even one counterfeit Rolex on display somewhere. They even have a very nice detailed brochure available for identifying counterfeit watches.
Its a pretty serious crime in most places. Coach and other handbag companies are pretty aggressive in chasing down counterfeits. But there are tons of fake Coach bags out there because they're cheap to produce. Hey, even my wife has one!
: (My son bought it for her as a gift at a flea market out of his hard earned money - whatta you gonna do?).