Zimmerman flanges

[Ron Berry]

I ran into a Zimmerman studio upright with plastic flanges.  The 
pinning is so tight that is now ceases to work.  I have repinned a few 
over the past several years.  Now the problem is with most all the 
flanges.  The action says  Pianic  on it and is a Schwander type 
action.  My question is whether anyone knows if this is a problem 
with the plastic material growing like some of the old plastics did.  
This is a 10 year old piano so the plastic is a modern type.  It looks 
like the Kimball Schwander parts will fit and my inclination is to 
replace the plastic with wood.  The butts have a butt plate so 
repinning would be extremely easy in that you can put a smaller 
center pin in.  

Replacing the parts wouldn't take much more time than repinning.  
Do any of you have experience with these actions?

Ron
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Ron Berry, RPT, Indianapolis, IN
ronberry@iquest.net
Check out the Piano Page at:
http://www.ptg.org/
for great information about Pianos