GAIA II Isolators only come in sets of 4. If you have speakers with 3 feet a piece, you only need a set of 6. Since I bought 2 sets of 4, I have 2 brand new GAIA II's for sale. Buy my 2, a new set of 4, and you are good to go. The GAIA II's will work with speakers up to 90 lbs each when used in sets of 3.
Harry Weisfeld of VPI said: “Installing the GAIA isolators on my KEF Blades gave the biggest improvement in sound I have ever heard on the system. Better than changing cables or electronics, the noise floor was lower, the focus was better, and the bass went deeper. All around a total success.”
Read about them here
http://www.isoacoustics.com/products/gaia-series/$150 shipped. I also have 2 extra new GAIA II carpet spikes for sale @$35 if you need them.