Weaknesses: Grip isn't very good if it's the slightest bit muddy underfoot.
Overall: Now that I've worn these for a couple of months, I think there may be something in the 2cm extra bounce claim. I've noticed that my legs always seem fresher than usual after a long run. It certainly doesn't do anything to make you run quicker, but I think there's a certain amount of reduction in fatigue.
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