So "what if"... You guys develop some cool tests that can tell you when a ski is "no good" anymore. Now Superskier brings you their formerly favorite ski and says it's no longer working well. You test it and it still is within "expected parameters". I'll bet that Superskier will still go out and get another ski. Conversely, Hackskier (like me) brings you my favorite ski several seasons old that still works great, still getting an occasional PB, you test it and tell me it's time to hang it on the wall - probably I will continue to enjoy it as it works well for me.
My point being, you can test the ski any way you can imagine, but if it's working well, the user is going to enjoy it; if they are unhappy with it, time for something new to ride - regardless of a test result.
Kind of hoping this is Panda- worthy; been trying for one for a long time now!!