I have switched my iron shafts to graphite/composite shafts. It all started when I lost the eight iron from my original set which were by the way OS Project. So I ordered a S.E.HT Viper eight and nine iron head along with SE ProForce shafts and grips. I was so impressed that I ordered the 5,6,7 and PW Along with shafts. I'm impressed, so now I have ordered the 4 and SW with shafts and grips. The shafts are excellent, good feel and promote confidence in hitting the ball.