Just came upon a situation today I've never encountered before. Any help would be greatly appreciated. I installed a Kamui medium tip on a Schmelke shaft, I trim the ferrule flush with the tenon. Used epoxy to attach the ferrule after threading the tenon. Tip and ferrule were both flush. I then tap the tip (gently) on a hard surface to get a feel for how the tip will hit. It made a sound like glass breaking! Is it 1) the Kamui was as hard as a rock, 2) the Schmelke shaft is not made of wood, or the ferrule (a Meucci replacement ferrule) was really something much harder than I thought I bought? Or a combination of all three? Never had this happen before. Even Triangle tips make a dull thud with similar ferrule and shaft combinations. Thanks for any help.