Peter, the older Campagnolo Pista ball bearing bottom bracket is a jewel,
it's silk smooth, and it's quietest my chain has been on my fixedgear,
probably due to the 109 mm spindle length, which puts the chainline dead-on
in relation to the rear cog.
Sheldon's suggestion of the Campagnolo long horizontal dropouts instead of
the regular track mounts, makes it easy to remove the wheel. Also his
suggestion on the 3/32" chain vs. the 1/8" track set-up works outstanding.
John Dacey, the Shimano long axle for the Dura Ace track hub you sent me is
perfect for the 130mm rear spacing, everything transferred just perfect.
Your technical info page has also been very useful.
http://www.businesscycles.com/tr-refspec.htm
It's a pleasure working with these regular posters in this group for their
great expertise.
-tom