Sorry I was not clear. Whether a device subjectively improves upon your sound is up to experimentation. While maple blocks and such might physically "isolate" a component from ground, it does nothing to isolate vibrations (spikes are most efficient in -transmitting- vibrational frequencies by focusing all mass into 1 point... mass = weight / volume).
There are many devices that incorporate these principles, including Sorbothane, Sorbogel, Mapleshade's Isoblocks, and (my guess) maybe even the Marigo Mystery Feet. The point is to deflect vibrations as it is customizable to the weight of your components. Every isolation feet (size, material, etc.) has a different ideal load where it works to maximum efficiency.
I did not recommend Sorbothane for the Sorbothane material, but rather the science in plain English on their website, and most importantly (!), they have a program where you can plug in various numbers and it will show you the ideal shape and size if your goal was to isolate vibrational frequencies!
My hunch is that people who are dissatisfied with any of the decoupling technologies are using the wrong shape or size (once again, that depends on the load/weight of your components), as in theory, Isoblocks and Sorbothane should do exactly the same thing. And so using the program on Sorbothane's website, in theory, takes out the guesswork in figuring out which audiophile component best suits your equipment, since very rarely do any of them publish specifications.
I would encourage experimentation, since what subjectively sounds good to you is all that matters in the end, but it helps to get a working knowledge of how these things work.
