Wurlitzer G411

[Jon Page]

Another method to straighten out the front rail is to cut into the bottom
of the rail in a few places about 1/3 to 1/2 way up. Make tapered slots
and insert a tapered wedge and drive them in to flex the rail, spot glue
on one edge only to allow knocking loose at some time to readjust if needed.

I've done this numerous times. I thin it was Yamaha who used this as a
frame leveling feature for a period.
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Regards,

Jon Page