if by O/S control driver they mean something like a Saint...in terms of a control driver...in that it is a speed 9 type disc
and if it is going to be a bit more stable than the Saint then I am going to be very interested
but if it is going to be over speed 11 (given the Giant top) then maybe I'm not so interested
interesting overall nonetheless
Got the 20. Now to (re)conquer Europe.