I bought Vibrapods, years ago and while they were all rated well above the weight of the equipment; they all flattened out(the round hollow part). The ones I used with their cones, did not. Of course; those fit into a radiused recess, in the cone, which would preclude the flattening. I e-mailed the company and asked if this was normal twice and received no reply. I won't deal with them again.
Interaction between Vibrapods and shelf material
For some time now I have had good results with my CDP and preamp supported directly on the Vibrapod cones and isolators, placed on glass shelves in a cherry audio cabinet. I'm aware that glass is a material that can be too resonant, but I was told earlier today that during their development the makers of Vibrapods learned that there was a good interaction between these materials. I have been considering switching out the shelves for maple and would be interested in hearing about anyone's related experience.
If I understand the theoretical purpose of the Vibrapods as isolators and/or vibration reducers, is it possible that there would be limited effect linked to the platform on which they're placed?