Under my tower speakers -- Isoacoustics Gaia, other options?

Late as usual, but a great discussion. 

@tonywinga, to take your great advice and experience (all around) a step further, I was dissatisfied with the high constant rate of the Nobsound springs. I went and found matching springs with about half constant rate (9.3lbs/inch I think) and bought a hundred. On very lightweight items I use one spring per Nobsound unit, and only three units (tripod) for only 3 total springs.

I was unconsciously trying to keep the gaps as small as possible like you recommend at .1", just so the thing can flex up and down a tiny bit only. Today I read up more and now 'get it'. I wanted 'soft and floating' for it all, slow to settle.

Now my Nobsound springs are used for three subs and I still don't need that many in each. I only used the lighter after-market and as few springs per component as possible for that tiny gap. I have eight components gently floating now.

I loved your description of speaker platforms and have been semi-engineering the springs I'd need for 110lb speakers and home-built platform. Just a bit scared of the speakers going down if not planned exactly right. It is the final frontier for finishing off my gear, and will probably yield the single most benefit if done correctly.

I finally figured out how to post a picture.  This picture shows my spring platforms that I made for my speakers which I now use on my HT subwoofers.  Trickle down.

I am considering the Podiums for my 185lb speakers. I live in an semi-active seismic area (San Fernando Valley). I currently use Legacy spikes on a very thick carpet/pad over a 12" poured concrete 3000psi steel reinforced slab. The podium could add greater stability and probably more defined sound (it’s already quite good).  However, the C type podium at $1800 price is 75% of the price of my speakers.  Probably worth it.

I tried Gaias (borrowed from a neighbor) under equipment. I prefer Ultra SS Stillpoints and Synergistic Research MigSx. I have ordered Pods for my CD transport and Platforms for both pre-amp and amp. It’s possible to upgrade my vibration isolation with Townshend products. I’ve been using the wonderful Seismic Sink under my terrible non-isolating VPI TNT VI for 17 years (pump it 5 pumps every six weeks-no big deal).

Have you seen this video where three guys try the Townshends, Gaias,and Prime Acoustic platforms? It's very long but informative as they try different configurations. The floor is concrete with wood overlay.

I watched as much of it as I could.