Hi All,  I'd like to thank all those people who provided
information and suggestions with regards to the end pins for
take-up spools [130201 MMDigest].  I ended up going with the idea
that Bob Streicher came up with, which involves machining down
a 0.250" pin to 0.200" and leaving a 0.025" protrusion on the
left and right side of the pin.  See

  http://www.player-care.com/machined-end.html 

Musically,
John A Tuttle
Player-Care.com
Brick, New Jersey, USA