I use good quality but not exotic fillable stands loaded with sand, and interface the top plate of the stand and bottom of the speaker with Black Dots from Herbie'e Audio and find the combination out performs the brass spikes I had been using previously. Herbies 's gives a money back guarantee so it's easily worth a try. But I'd guess you'll like the effect of the Black Dots.
(I'm not affiliated with Herbies, just a satisfied customer)
(I'm not affiliated with Herbies, just a satisfied customer)