Weights on top of equipment to dampen vibration

Being a very old timer, and remembering the VPI Magic Bricks, these were long before vibration control under the chassis was thought of. My how times have changed. Recently I placed VeraFi Audio's Very Black Hole vibration devices under my kit, starting with under my Audiolab 6000 CDT transport. I can't imagine how a set of these can perform such magic for a reasonable $199/4. Following that, I now have them under the rest of my kit. I posted a review for further explanation

I had a bunch of extra edenSound Bear Paw footers that I decided to quit using so I wrapped them with heat shrink and applied top/bottom thin adhesive non-slip pads and now have a bunch of brass weights that I can position on top of equipment and peripherals. 

I have also been using to good effect 20lb lead bricks (with vinyl footers) on the hardwood floors around my Cornwalls and Rels. It is a very tunable process. Too near the components and treble goes up. It has to be done judiciously.