What shape are Tempus bearing edges?
A. The best answer to this came years ago from, as I remember it, Gordy Knudtson, who likened the bearing edges to “the long end of an egg”. The shells are really too thin to allow much in the way of precise angular variations – 45 degrees outside, 62 degrees inside, that sort of thing – and, as near as I can tell, very minor variations on the basic theme make no audible difference to the sound of the drum in question.
