@tk21
the difference in height between the spikes and the Gaia 1’s was maybe 3/4”. With the dispersal patterns of most speakers, I doubt many people can hear a difference in height of an inch from 10’ away! Having said that, I put my KEF’s on some 21”x 19” x 1.25” granite and it made a very noticeable difference. Then when I added the Gaia 1’s, on top of the granite and the soundstage really blossomed.
JD