As another manufacturer of isolation products (Machina Dynamica), one thing not discussed very often is the importance of seismic activity in the overall scheme of things. The continuous motion of Earth's crust (along w/ other low freq. generators) produces quite a bit of energy in spectrum around 1-10 Hz and higher, w/ peak in vicinity of 1-5 Hz. Some seismic energy higher up freq. scale can be dissipated with damping and other techniques; however, dealing with the very low freq. stuff below 5 Hz is a horse of a different color. IMHO platforms and stands that directly address the sesimic issue are the only way to fly, especially in view of the fact that mass-on-a-spring devices are effective for higher vibration frequencies as well. In fact, IMHO airborne and component vibration is "relatively" innocuous compared to the sesimic type. In the end, whatever works is a step in right direction. My 2 centavos.
