How do iso. cones work and what are the benefits?

Ozfly hit it on the head when he states that you need to eval the quality of the change. I tried some 4in x 6in air filled packing bags under my CDP once just for giggles since they were laying around. Tightened up the bass, improved clarity of mids and detail of voices and mid range instruments and completely removed the upper octave or so. would have been great if that hadn't happened.

Mechanical break in of points???

Piezo, Yup! Hard to believe. I was forewarned of this mechanical break-in period prior to installing them under my rack and speakers.

But I paid no attention to it whatsoever as I found the notion perhaps even silly and forgot about it immediately. But lo and behold, one day soon thereafter, I turned on my system and there were vast improvements. The micro-dynamic improvements were on the order of about 30% and the macro-dynamic improvements were perhaps about 15%. This is assuming that a 5% sonic improvement is barely audible. And those percentages do not take into consideration the initial 5% to 10% improvements immediately after installation.

Of course, after hearing the drastic post break-in improvements, I then remembered the warning of the break-in period.

That's why when somebody says this rack is better than that rack or these points are better than those points, I'll bet dollars to doughnuts, the evaluator never took mechanical break-in into consideration.

And perhaps that is one reason some to many have yet to appreciate the sonic advantages of coupling over decoupling.

-IMO

So, no Daruma users here? If not, I get the "point," so to speak :-)

Just got a set of daruma's and will try them. Look a bit tricky to get them positioned without the bearing being bound up. But will see.

Yes, they do seem to be a bit tricky!