My first attempt to use silicone tubing to repair my TU58 rollers was also unsuccessful.
Maybe the material I used is too soft? Your experience suggests to me that I should hook
up an oscilloscope to measure bit timing, and then adjust the roller composition and
diameter to arrive close to the correct bit length.
--
Mark J. Blair, NF6X <nf6x at nf6x.net>
http://www.nf6x.net/