Isolation Questions

Hi to all,

Being a true believer in vibration control, I purchased a BDR Shelf for Source here on Audiogon (thanks Sam) for an AA Capitole mk 11 CDP, equipped with BDR cones affixed to the bottom of the chassis.

My very limited understanding of the principles involved seem to indicate that the CDP, when placed on this shelf, will likely be more resonant than the shelf. Subsequently, shouldn't the point end of the BDR cones be in contact with the chassis of the CDP? If that's the case, reversal of the cones won't be an option, but I think rollerblocks might be more helpful in draining internal CDP vibrations. Any thoughts on that?
If the consensus is that the cones are fine where they are, can anyone advocate for rollerblocks under the BDR shelf, or is that like killing a mosquito with a shotgun?

Thanks,