I know this thread is 3+ years old, but its contents are still highly relevant.
I was also looking at @ghosthouse's post here: https://forum.audiogon.com/discussions/vibration-isolation-2/post?highlight=fat%2Bdots%2Bshore&postid=1705736#1705736
I'll be placing Harbeths on top of the four wood uprights of an open stand, and was looking at Herbie's fat dots and wondering how "slippy" or not-slip their surface is. I'd attach them to the tops of the stand but wouldn't want adhesive between them and the bottom of the speaker.
The other thing I was looking at was cork, which is not mentioned very much in discussions of speaker/stand interface. Thinking about simply topping the uprights with squares cut from a sheet of cork. (BTW, the adhesive of double-sided carpet tape is also pretty ferocious.) Improvised experiment: pressing down firmly on a cork drink coaster on a wood surface, it seems to me that it's not absolutely non-slip, but it doesn't want to glide easily over the surface, which seems pretty much ideal.