To get better decoupling than vibrapods, use six large springs under the sandbox. McMaster-Carr P/N 96485K125. This will improve both focus and smoothness relative to the sandbox alone.
Vibrapods under Bright Star for VPI Scout
I'm entertaining the idea of further isolating my VPI Scout by using vibrapods under my Bright Star Big Rock 3. The table currently sits on the BigRock 3 filled with sand with a noticeable improvement over the stock top shelf of my audio rack. I wonder if placing vibrapods (# 3) would further improve the isolation? Has anyone experienced this set up? I'd appreciate any comments.