Universal players take a bit of "finesse" to rebuild due to their use of aluminum & plastic -- but once you get rid of the Perflex valve pouches, they are a very tight and responsive piano. Perflex was supposed to be a "miracle" replacement for "old Fashioned" leather pouches, however it has not proven itself as it disintegrates after a decade or so--I have leather pouches from the 1915s that are still functioning! Some of us stick to the old stuff as it is known to work!
David D.
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David Dewey RPT
Oroville CA
(530) 589-3676
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