>Greetings Everyone! > > OK, spot quiz time.... > > What do you use to groove/roughen the tails on a newly installed set >of grand hammers? > > Eagerly awaiting a flood of responses... > > >Rob Kiddell, >Registered Piano Technician, PTG >atonal@planet.eon.net > Nothing other than the sanding marks left by the disc sander when the tails were contoured. If the rep lever spring is right, the tails are shaped properly, and the backcheck height and angle are close to correct, the hammers should check just fine without roughening, and won't chew the backcheck leather up in the process. That's been my experience. Ron
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