I have ordered the GAIA III for my Sanus speaker stands after having incredible success adding Iscoacoustics OREA to my subwoofer. The speaker stands currently have spikes, which were a better isolation choice than plastic feet at the time. Since the floors are hardwood, the vibrations from the subwoofer were traveling through the floor, up the spikes and reflecting on the tweeter, marring its performance.
Isoacoustics recommends OREA for small speakers on stands, but that leaves them susceptible to falling off. Since these are bolted to the stand, they join in with the vibrations. I can feel them travel through the stand. It is my belief that by adding the GAIA to the stands, the vibrations from the speaker itself will not reflect back up, as they are likely doing now. It will also further mitigate the vibration coming up through the subwoofer.
I have used numerous tweaks, both passive and electrical, and using these acoustic feet have been some of the most impactful.