After the USGA recently announced a rule proposal allowing different forms of adjustability for golf clubs.

Once the announcement spread last year, the race was on among manufacturers to find new ways to incorporate this into their golf clubs. Callaway has just announced their the new I-Mix line of drivers that takes full advantage of adjustability. Inspired by the constant tweaking done to drivers from week to week on tour, the I-Mix will incorporate the FT-5 and FT-i club heads  along with over 50 different shaft models that are fully interchangeable with the new I-Mix connector system. In 2008, Callaway will begin selling the FT-5 and FT-i club heads unshafted with the new threaded hosel so golfers can select their ideal head and shaft combinations.

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The key to the I-Mix system is the threaded cap screw that is attached to the shaft. The screw is machined from 6-4 titanium which not only saves weight, but ensures a durable, corrosion free system. The club and shaft screw together and are secured with the I-Mix wrench which allows the golfer to have a safe, secure fit; but still provides easy disassembly and reassembly when needed.

Callaway has realized the potential of adjustability with their Opti-Fit weighting system which provides up to 50 grams of discretionary weight which can be moved to provide golfers with either a draw or neutral bias, depending on their ball flight needs. I-Mix pushes that technology one step further now that golfers can easily move between draw and neutral heads, lofts, and shaft combinations to find the perfect launch conditions for the conditions and course they face.

However, club heads are only half of the magic formula to make a great golf club. To complement the club heads, Callaway will be introducing 65 shafts from many different manufacturers including Aldila, Graphite Designs, Fujikura, Mitsubishi Rayon, UST, Matrix, and Grafalloy. Each manufacturer will have a variety of shaft models and weights so golfers can pick the perfect setup to achieve their desired ball flight.

The FT-i will be available in either draw or neutral weighting with 9, 10, and 11 degree lofts. The FT-i Tour will be availble as the Low Center of Gravity  model in both draw and neutral with lofts of 9.5 and 10.5 degrees.