If it comes to raising the hammer centers/rail, shim the whole stack under the brackets. Another measurement to check is the 'Magic Line". This will indicate if indeed the stack is too low. (In my last post when I referred to "string impressions in the crown, are they fairly centered"; I meant fore and aft of the strike point not left to right). Regards, Jon Page, piano technician Harwich Port, Cape Cod, Mass.mailto:jonpage@comcast.net ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
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