In my little speech, I make some slight misstatements, surely.
I do not know that mine is the only one working with new friction parts.
The work was done by myself in 1987, and not being a machinist, it was about 100 hours of work,
so I never did another, other than for my BM.
Here, but I'll try to make a better demo eventually with a better camera and lighting.
Any questions? I can try to answer, as it would be nice to see more BCs play loud and clearly,
[YouTube]
http://youtu.be/bPUoI32SGDM[/YouTube]