<html> <blockquote type=cite class=cite cite> I am sorry (not really but you see...) , I will try it but I don't buy it at first :>) as the pinning is showing more or less wear depending of the place in the keyboard, sizing the hole to a standard size with an electric drill may not allow the best fit (anyway not on original pins) .</blockquote> <x-sigsep></x-sigsep> Hi Isaac,                  Just make sure the pin is straight and polished.  We sell lots of new Yamaha's and in any month it saves us hours of key fitting.   When I say a quick burst of the switch, it's not much more than half a dozen revolutions, just enough to burnish the hole.   After steaming out old bushings, we re bush and fit in the same manner, we have encountered no problems at all.  A set can be done in 5 mins or so.   Try it and let me know what you think. regards Roger</html>