UST Mamiya's Recoil Iron shaft has recently been featured on golfwrx.com. UST Mamiya has 19 different layers within the shaft creating a design that is able to outperform steel shafts.
Click the link below to read the complete article.
http://www.golfwrx.com/146301/should-your-next-set-of-irons-have-graphite-shafts/
