Spike or decouple ?

As you know,many speakers come w/ spikes (as does my VR4SE)
However,just read a piece by Greg Weaver(stereo times?)saying decoupling-in this case Vibripods on a board- under
this particular spkr gave them improved performance- esp.
the bass area. Hard to beleive many manufactures would continue to reccomend spikes if this were not the best way to go - but who knows ? Pls tell us your experience.