The iM10 family of golf shafts are the first Project X shafts to feature Hexcel’s® incredibly unique iM10 carbon fiber, a very high modulus (stiff) and very high strength carbon fiber allowing for new possibilities in golf shaft design.  Because of this, iM10 shafts offer unmatched stability in both a playable mid launch/spin design and a counterbalanced low launch/spin tour design—providing a variety of options to best suit your gameContrary to popular belief, when it comes to carbon fibre, stiffness and strength are not the same.Often a stiff material is very brittle, and a strong material is not very stiff.  This makes shaft engineers develop a combination of materials to try and dial in ideal strength and stiffness properties for...