Yeah, you can use whatever string you like. I actually ended up stringing it up with Signum Tornado, since I decided I wanted a true apples-to-apples comparison with my Phantom Pro 100.
With strings (17G SG) Volkl vibration dampener and Forten red Pro over grip. 11.4 oz, 5 points HL. Feels HH when swinging.. but is in fact HL 5 points. The balance point is right over the throat which will I hope give this frame some nice drive through the ball. Back with results when I get on the court. From swinging I can feel that the OHBH will be very stable and easy to create as the frame seems easy to swing and control. A nice fluid, easy swing should create a good result on both sides. We will see..