Check out the thread below for my thoughts on the Gaia II (post #17] and further comments on installation and adjustment. In short, I really like them and feel they made a nice improvement to an already great speaker. Highly recommended.
https://www.audioshark.org/general-audio-discussion-15/iso-acoustic-footers-19011-page2.html?highlight=Gaia
https://www.audioshark.org/general-audio-discussion-15/iso-acoustic-footers-19011-page2.html?highlight=Gaia