<html> <body> John, My experience is that it isn't very effective after a doping.  That said, there's nothing lost trying and success beats the alternative. ;-) Andrew Anderson At 10:31 AM 2/5/2006, you wrote: <blockquote type=cite class=cite cite="">I have a client with a Wurlitzer console with loose pins.  Tell-tale dye stains suggest the pinblock has been doped in the past.  Do you think a CA treatment would still be effective on this piano?   Thanks fer yer input, John Dorr Helena, MT</blockquote></body> </html>