An observation from experimenting with grounding my audio cables...

I have all Synergistic UEF cables now (level 4 or Galileo) and they are all grounded, plus my components, to an SR Ground Block. It looks a little crazy to have all the thinner grounding wires going everywhere but it works very well. Much lower noise floor and much less compressed sounding system. The Ground Block plugs into a different wall outlet so I can demo the effect very easily. It's quite noticeable.