These clubs were released in 2011. Uniflex is a shaft offering that Callaway put in a lot of their steel shafts that works for a large majority of amateur swings. It is best termed as a flex that is between regular and stiff. If your swing speed is 70 with the driver, then you may need to consider graphite shafts in either regular or senior flex.
Christopher Wadwick 2 years ago 0 of 0 found this useful