Can anyone explain to me why Ampico valves have the thin fiber button
glued to the pouch, rather than being glued the bottom of the valve
stem (perhaps with a layer of very thin bushing cloth on the bottom,
to keep the pouches from noisily slapping them), and what would be
the harm/benefit of configuring things this way?  And if a 3-armed,
lightweight plastic extrusion for the valve stems would be better for
airflow than the 4-armed?  And if a simple, accurate air-flow meter
could be fabricated by passing the air through the vanes of a tiny,
D.C. computer fan (like the ones that "Radio Shack" sells) so that it
turns in reverse from its normal operation (acting as a generator) and
wiring it to a voltmeter?

I have an extra set of late "A" blocks to experiment with, and am more
concerned about superlative operation than "historicity", but I do not
wish to embark on experimentation in a manner that has been already
tried and proven inferior in results.

Gordon Stelter