My Shoes Have a Spec?

I never thought I'd own a pair of shoes that came with a spec. It makes sense though considering how much time one spends on these suckers.

I'm not really sure when exactly to buy new shoes but I purchased these after 260 miles. I picked them up at the running factory in Campbell, California. The owner, Tom Schenone, is a really great guy and I'd recomend his store to anyone needing shoe advice. And I'm not just saying this because he offered to lend me his race wheels. ;-)