You prove my point. Everyone has ears, but not everyone agrees on the effect of the lathe (as the threads about it show). Ergo, if it has an audible effect, it must be small, otherwise there would be no disagreement. Exactly the same applies to the "Animator", cables, stands, power leads, etc.
The best tweak, of course, is a good room, a very good pair of speakers, some kind of source(s), and a very large collection of interesting music. Once you have all that mucking about with tweaks straining to hear small improvements seems like a neurotic waste of time, to me at least.
-- Ian