I must make a correction to my note in the MMD for 06.10.03.  The
advice about having the pneumatics falling closed under their own
weight did not come from Craig Brougher.  At least not pertaining to
striker pneumatics.

Here is Craig's email to me.  It explains how to remedy a glue problem
close to the hinge:

  Hi Pete,

  Say, I never said any such thing about pneumatics and hope
  you will take the time to correct that.  As a matter of
  fact, some player manufacturers even put springs in the
  pneumatics (besides Aeolian Duo-Art)to speed the opening
  return and get the pneumatic out of the way of the piano
  action.

  There is one pneumatic however that has to be floppy, and
  this is what I talked about -- the Schulz pouch pneumatic,
  which has to close by its own weight.

  That said, too many newly covered pneumatics tend to have
  glue webbed between the leaves at the hinge, making them
  stiff, and that is not good.  So if you use hot hide glue
  you can let the pneumatic dry hard, close it and then hit
  the flat side of the hinge with a rosin hammer smartly,
  smashing the little drops of hardened glue that would cause
  the bind, without causing the hinge to wobble.

  This applies only to pouch pneumatics which blow outward.
  That includes cuckoo clock pneumatics.

  Craig Brougher

Setting the record straight,
Pete Knobloch