spec difference b/w TW retail site and TW University

Apologies if this has been asked before, but I couldn't find an answer via the search function...

I've noticed that the specs for racquets differ between the TW retail site and the TW University tools. Although the variations are small, pretty much every racquet I have looked at has a different static weight, swingweight and balance across both sites, and I just wanted to know which would be considered most accurate.
 

SFrazeur

Legend
As I recall the TWU specs are taken from a single racquet, while the TW Retail specs are from an average of several racuqets.

-SF
 
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