The Tour AD YSQ was introduced in 2008. The YSQ family of shafts is the new modernized YS+. New design & technology will add 3 to 5% in ball speed thus adding 6 to 10 yards of distance to each shot. The YSQ shafts incorporates an exclusive technology called AXIAL COMPOSITE INTERLACE (ACI) technology. Graphite Design engineers have discovered that strategic orientation of fibers in multiple angles gives the golfer ultimate performance. The ACI technology stabilizes the club eliminating shaft deformation to enhance the playability of today's larger club heads. The enhancement leads to superior distance & unmatched accuracy in every shot. The 2008 model YSQ 65 is slightly stiffer in the tip & butt sections but has an additional 5% in torque compared to the YS+ shaft. This offers additional benefits in distance & feel every golfer needs & wants. The YSQ is available in 2009 in a 75 gram part. This 10 gram heavier version is designed for the stronger player. The YSQ 75 is 10% lower in torque & has a higher bend point for lower launch angles than the YSQ 65 these are preferred for higher swing speeds. The YSQ 75 is also ideal for fairway woods. See the below table for Shaft specifications. Available Options: Weight: 65g, 75g, Flex: R, S, X