What isolation feet under your amp with great result?

Oh, a further thought.  I initially used these pads nude and they left permanent blemishes on my audio rack so I clad them with self-adhering felt, which is also inexpensive and allows one to move the components more easily.  

@whitestix  
@rlb61 
When using the EVA pads, do you remove the stock feet?

@ericsch I don’t remove the feet. I place the component directly on top of the EVA pad, feet and all.

3/4"MDF and casters.  My amps weight 85Lbs each.  The great results are not hearing me groan or pull a muscle while cleaning.
 

All my components rest on Machina Dynamica Springs. The science is sound, the result is amazing, and the price is right