What do you use for isolation?

This is a slight tangent from the question but, to the complaint about some isolation devices like Vibrapods and sorbothane pads ruining the finish on components, putting a single layer of plastic wrap between the device and the component solves the problem. The plastic wrap clings to the sorbothane or other sticky surface and can be easily trimmed with a pair of scissors.

I have not done any blind testing so can't recommend the sonics of one brand of plastic wrap over another.