try just the maple and place Vibrapods, one at each corner, as footers. VPods are rated by weight loading; add the total and divide by four, then size appropriately.
Or try the granite with cones below the maple / atop the stone. Vibrapods under the granite atop the rack shelf.
A sheet of pink bubble wrap is another good iso material. The pink is antistatic and heavy duty so air will not leak out.
Or try the granite with cones below the maple / atop the stone. Vibrapods under the granite atop the rack shelf.
A sheet of pink bubble wrap is another good iso material. The pink is antistatic and heavy duty so air will not leak out.