Edge Retention/Rolling Test Stand

[Blade Banter]

This would be a good test if the baseline could be set.  The media which is used to roll or dull the edge would need to be somewhat controlled to give the same pressure over at least 3 test weights.
   What would make it relatable would be corolated to something like rope cutting.  So if a certain dullness was obtained by making 50 cuts of rope the test would have a given weight applied which simulated the same wear.  
    I'm not sure how to how this works because there are so many different knife steels.