Stephen, The knife won't work. You'll just mercilessly butcher the hammers and that will force you beyond any doubt to replace them. These hammers need replacement anyway so maybe you should just go ahead and try the knife to prove to yourself that it won't work and then buy new hammers. The reason new hammers are necessary is because of the described depth of the groove. These will never regulate properly of you take all that meat off the hammer surface. As Newton taught me (thanks Newton) the distance from the hammer flange center pin to the string should be the same as the distance to where the shank is bored into the hammer. This is measured from the center of the shank to the tip of the hammer. If you sand away this much material those measurements will never match and you will have regulation problems. I suggest you get together with your neighborhood tech and purchase a set of pre-bored supply house hammers and glue them on yourself with a little guidance from the tech. This will get you back to a usable piano with a little experience under your belt and a better taste for whether or not this is what you want to pursue. Make sense? Hope this helps. Greg Newell At 05:07 AM 5/17/2002, you wrote: >Would there be anything against taking a knife and slicing the felt off >to make the grooves shallow, then sand from there? In the bass >section, especially, some grooves are almost as deep as the strings are >thick. Greg Newell mailto:gnewell@ameritech.net
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