Another advantage of TW data is that it uses a standardized method to measure all brands of sticks. So it's possible to compare dunlop specs against babolat specs.
If you prefer dunlop's site then your only point of reference is other Dunlop sticks, unless you can find babolat data on the dunlop site.
Current & recent affairs: PS97 (coming soon!), ai98, Extreme Pro 2.0, Steam 99s, PK QT 295, Dunlop 3.0T & Bio 400T