I've tried Vibrapods and a variety of other isolation devices directly inder the Jupiter but have had the most luck with the following combination.
I use 4, #3 Black Diamond Racing Cones placed with the broad base down and the point upward touching the Jupiter. I have each BD racing cone sitting on a - this is really weird, but it works - a $1.49 hard synthetic callus-remover 'sponge' purchased from "Sally's Beauty Supply" (great cheap tweak isolation device, and even comes in our choice of tacky colors - you can get 2-3 'bases' from each 'sponge'). The cone/sponge combination rests on top of a 1" piece of medium density fiberboard - upon which also rests my preamp and turntable - all of which rests on Vibrapods (the standard Vibrapod 'sandwhich'). Finally, I have two pieces of granite with felt on the bottom sitting on top of the Jupiter on either side of the CD trap-door - although any non-metallic weight should do; non-metallic to avoid any potential electromagnetic interference with the Jupiter's processors. All of this makes the Jupiter pretty immune from vibration and yields very powerful and articulate imaging and presentation.
I've tested the BD cones both point up and point down with this setup and the point-up sounds best to me.