I had never thought of it that way. Yes, I have always had my M60's on spikes; since the spikes go all the way through the carpet and padding to the subfloor, they are stable.

I'll bet if you call Axiom, they will hook you up. Even though spikes might not be available a la carte on the website, they can probably find a way to get some to you.
bibere usque ad hilaritatem