Anyone Try this?

Try different things and listen. Whatever physically stabilizes the speakers best forming a solid foundation with the floor will probably sound best. Hockey pucks are not a bad idea. I wish I thought of that one. Getting speakers settled firmly and in teh right location and orientation is key to best possible sound. No wobble!!!

Spikes are just plain bad news .
I went to Herbies threaded ceramic glider footers on the two pr of speakers I listen to most, BIG improvement.
Herbies sorbothane based footers are not made for speakers.

Thanks for the Herbies recommendation

The four feet on the outriggers of my Tidal speakers are basically a roller bearing support. I installed 1/8" thick dense felt pads on the bottom of the feet and have noticed no audible change vs. the footer's stainless steel surface contacting the floor. It sure is a lot easier to move the speakers now and I don't have to worry about scratching the aluminum oxide finish on the plank flooring.