I asked because the IsoAcoustics GAIA feet seem to get great reviews, and since you are so happy with the IsoAcoustics stands under your subs, I thought you might have tried them. I did splurge and buy a couple sets of GAIA II's for my Summits, but before I even installed them, ML decided to have a big sale and I bought my ESL 15A's which would require the GAIA I's to support their weight (BTW, I see IsoAcoustics now builds feet that support up to 620#). Unless I hear someone I trust give them a great review, I don't know that I can possibly justify putting $600/speaker into something like this (then again, I do spend money on high end cables

). Besides, I am still working on final placement of my speakers, and deciding exactly what I am going to do sub-wise. I really need to get my entire system 'stable' before playing with stuff like this...