Uh, at least two examples of measurements for vibration isolation devices were already provided. Not to mention the landmark physical and theoretical treatise on vibration isolation - as it relates to audio - published in Stereophile magazine more than 20 years ago. Hel-loo! By the way, I really like the way you sneaked the word "theoretical" in there, as if you knew anything about the theoretical physics, or any physics for that matter, involved. Do you label Everything you don’t understand you label woo or pseudo-science?
The sky is the limit at Imagination U. What you posted earlier from some crusty folks at Stereophile can hardly be labelled a treatise.
Again, show me the the measurements whey a spring doubles dynamic range. Stop babbling and cough up some actual data.