I recognize that this difference is small, so small in fact given the measurement errors you mentioned, probably not in the realm of statistical significance. But.....those are the only reasonably accurate #'s I had access to. I wasn't going to cook the books to make a point. The #'s are in fact significant (statistcally speaking) in some single cam designs. Enough so that it can't be discounted as measurement errors.

I wasn't using this as a means of justifying hunting with lighter arrows, or to take sides on the KE vs M debate. I merely threw it in as an interesting anomaly that is present in some bow designs. Just a curious blip that occurs that was peripherally related to the topic at hand.