There was so much wrong with that post I don't know where to start.
The amazing thing is that Robbie even let it through.  He probably
will not let this one through.

 [ We need fuel for discussion, and this is a fine topic.  The
 [ sarcasm of your article doesn't offend, rather it emphasizes the
 [ bad experiences you've had with inappropriate materials.  -- Robbie

It amazes me how people can read the posts in this forum and still
think you can hack together pouches from household items and have them
still playing by this time next year.  I suggest you also use Naugahyde
to cover the feeder and reservoir bellows.  I definitely think you
should use red and white checkered plastic tablecloths for bellows as
well.  I further suggest left over dress material or old bed sheets to
cover the striker pneumatics and, of course, you must paint those with
tree tar or bathtub caulk to seal it.

Of course, you can always use dressmaker's felt in place of that worn
out leather on those valves.  If you don't have that, then use plain
business card cardboard or just cut up Grampa's old shoes and that will
work just fine.  Don't bother replacing all that twill hose, just keep
wrapping it with duct tape until that player piano plays just as well
as if it had a $12,000.00 restoration.

I have removed _all_ these items from player stacks.  They all worked
so well that the customer brought the piano to me and paid me big bucks
to fix it.

Why listen to someone who has spent years, and tens of thousands of
dollars, learning what materials work and do not work?  Why do I test
every new supply when it comes in?  I still learn expensive lessons
when I purchase something from a supplier that I used to trust and this
time I get something useless.

I spend substantial effort making darn sure that every material I use
is of sufficient quality that I will not have to redo it for another
30-50 years.  Tell us about your vinyl pouches when they have been in
use for that long.

D.L. Bullock
Piano World, St. Louis
http://www.pianoworld.us/