Sonartec GS Tour Fairway Wood. New for 2007. The Sonartec GS Tour has the largest sweet spot of any Sonartec fairway wood due to improved patented Driving Cavity technology. The Centre of Gravity is repositioned allowing the highest-launching, low-spin mens fairway wood ever produced by Sonartec. The sweet spot is aligned vertically with the CG of the ball for increased power transfer while the newly-designed leading edge and sole plate ensures less drag in all turf conditions, including tight lies.