Greetings. After trying several DIY devices and tweaks, I end-up with a device I created and that basically is a "T" shape thing. I used 3/4" copper tubing (plumbing tubes) cut to size and attached with 4 "t" connectors. At the corners used 3 concave door knobs, filled the device with sand and put 3 ball bearings on top. It is like a Symposium Roller Blocks connected at each side. Maybe the bearings are what give the effect of clarifying everything and giving better soundstage. I also used a set of DIYUMAS ( my recipe) with good results but like it more the T-Bone Roller (as I named it).
Another tweak that drop my jaw, and Psychicanimal know it, was the effect of the "famous" tropical wood call ..MOCA...which the Psychic bring my home from a near place. Those suckers took whatever was affecting my system, call it vibration, moody things or else, and bring a clean sound to my system. The problem is that the wood is hard to find, needs a long cure time and it bends if not treated properly. BUT...what an experience by just seating it over or under the components.
Damp the inner parts of the lid too, it works.
Happy Holidays,