Strung up my 2nd one w/ the exact same setup as my first, but added a leather grip.
Stock w/ Yonex Super Grap, Yonex dampener, RPM 17 = 347g/12.2oz
Leather grip added = 356g/12.55oz
Will hit w/ the leather grip one tonight. Doesn't feel overly heavy when swinging through the air, but...