Hello, My name is Chris Rawson, I am a graduate of The University of Western Ontario Piano Technology Program, and a Registered Piano Technician with the PTG.  
Someone told me yesterday that there were some questions about this new part for the piano posted here.  If you haven't yet seen my part, go to ebay.com and type key leveling in the search box.  This product is legally protected, so I can answer any questions you have.
 
 
 
