Hi Ed, A key is a beam. To make it less flexible the top and bottom could be coated. I'd try water thin CA glue as it is more likely to penetrate. It used to be possible to buy strapping tape that had thread embedded in it. That might be a "quick and dirty" way to check if there will be significant benefits from doing carbon fiber. Regards, Don Rose, B.Mus., A.M.U.S., A.MUS., R.P.T. Non calor sed umor est qui nobis incommodat mailto:pianotuna at yahoo.com http://us.geocities.com/drpt1948/ 3004 Grant Rd. REGINA, SK, S4S 5G7 306-539-0716 or 1-888-29t-uner
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