lately have been having problems in my irons with the shafts creaking so i sent them to a pro (integra golf)to be looked at and was told they need glass beads mixed in with the epoxy .so on the arivall i expected my clubs to be rattle free but first time out 6 clubs again had the same problem.so i decided well ill try myself so i thought ok ill try somthing else so what i did is pre drill loads of tiny metal shaving and mixed with the epoxy and bingo not a bit of movement or creaking absoloutely rock solid .just though this might help anyone with the same probsssssss.keeeppppppppppp swingin