I've an O3 Tour and the balance is 31,1cm strung with ProHurricane 17g mains and Iso-speed control 16g, 31,1cm=12.24inches, so it's 9,5-10pts HL without dampners or overgrip or lead tape.
Is this a model with construction problems? How are yours? In accord with O3's Tw review the balance point...