Wood blocks underneath components?? snake oil?

Excellent point Newbee, I will begin design on a moon shield immediately :>)

Hi Newbee

exactly what amplitude must this resonance reach before it actually affects the SOUND of the component

I'm not going there. I will not put on the facade that I have all the answers to everything. Some people get sucked in though, including the Pope, with disastrous results.
While I don't know everything, doesn't mean I know nothing either :-).

BTW, where the heck did warrenh and all the other coupling pundits go? Geeeshhh I'm just out here swaying in the wind.

Question for you, my friend. Did you read my inset from the bad vibes article and how it explains how sorbothane
"can contribute to the subjective impression of a "mushy," "soft," or "boomy" bass response"?
Could be in your system/preference it works well. There are so many variables it's hard to say what will or won't work on an absolute scale, IMHO.
Good luck

cdc: The ideal stand as I gather would be:
1) completely rigid and operate as a single unit. Bad vibes article "Minimize the relative motion between different elements that comprise a system"
2) resonant frequencies would be pushed as HIGH as possible so vibration's amplitudes are as LOW as possible. Bad Vibes article:
"lowest natural frequency will be the most dominant". Minimum resonant frequency = maximum amplitude".
"Reduction in frequency leads to an increase in dispalcement...resulting in a "noisier" less stable
platform".
"The lower the resonant frequency of a platform, the less desirable-the associated increase in amplitude will cause more serious ringing that damping can only partially reduce." So using sorbothane actually INCREASES ringing which damping can only partially reduce.
"Enough damping should be applied" BUT ITS PURPOSE IS TO "further lower the displacement of resonances" not increase it.

As I understand it, sorbothane has
1)high amplitude as in actual dimensional dispalcement
2) soft material with numerous, complex. vibration modes.

cdc, I just wanted to add one more thing, those conclusions you arrive at from reading that article about resonant frequencies are not accurate. "Minimum resonant frequency = maximum amplitude". Does amplitude of vibration in a medium only depend on the frequency of vibration? Can you provide a reference showing that relationship or an equation or something? What about the magnitude of force that causes the vibration in the first place? I just want you to know that some of the best and most effective isolators I have seen have a natural frequency of less than 2 HZ and achieve 99.8% efficiency of vibration isolation above 10 hz.

Another vote for Herbie's Tenderfeet, which are low cost, and can be tried at home with money back guarantee. Seem to work wonderfully on a variety of underlying surfaces, wood, marble, granite.
After trying wood blocks, I have ended up using them on top of certain components to subtly tune sound, and as mini-bases for the famous Star Sound Audiopoints, with and without the additional subtle tuning effect of an intermediate Audiopoint Coupling Base between the point and the wood.
If the basic "sound" of a component is enjoyed then the very simplest idea is to try Herbie's Tenderfeet, first. A lot of what many seek in their system's sound is unveiled, or allowed to happen, with these relative bargains in support.
Herbie's also has many variations to interact with, or modify, their basic Tenderfoot product, and to interact with other manufacturers' products.
Using the plain vanilla Herbie's Tenderfeet is probably the most cost effective way to get started with great "universal" component support. The home trial offer allows one to hear in his/her own listening room before making a final decision.