Speaker Footer Advise Please


I am getting near the end of the road in terms of tuning my system. I feel that one of the last truly big steps I can make will come when I carefully decouple my speakers from my slap concrete floor. What I am looking for is practical experience and advice from people who have performed just this. As a side what were your experiences along the way and what did you settle on and why. My speakers are Wilson Watt Puppies 5.1 and T+A amp and preamp so my system is dynamic to say the least. I'm looking for that last bit of separation of sound field from my speakers and would like to see if I can tighten up my low frequencies from what is now the tightest bass I have ever heard.

Many thanks in advance.
leica_man
I have Thiel 2.4s on a tiled floor and was wondering if I should use something like Boston Audio Design TuneBlock S (for speakers)?
Are there other alternatives to the above i.e footers for speakers with spikes?
Any advice/recommendation would be appreciated.
And, a third path:
Herbiesaudiolab.com
Doubled-up Big Tenderfeet placed beneath the bottom of heavy speaker cabinet to separate it from the solid floor.
There is a ninety day home trial period.
Please post which method you end up preferring.
Herbie's Big Fat Black Dots work REALLY well for me. I don't have a concrete floor however.
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I'm on carpet over concrete slab. I had granite slabs custom cut so that I could experiment with different footers. I'm currently running Herbie's Big Black Dots between the speaker and granite with very good results. As stated, they are inexpensive and all of Herbie's stuff comes with a 90 day money back return, so it's kind of a no brainer. I will be trying Aurios Pro-Max iso bearings, both alone and combined with black dots (had black dots custom cut to fit recessed opening of Pro-Max, 1 3/4") Check out my system for more info...