Actually if you call the boys at Zu they will downplay the importance of their spikes or aftermarket brands. Not needed at all. Check with Sean or Adam to verify this.
Isolation for speakers on spikes
A friend recently gave me some Vibrapod isolation discs to put under my speakers, B&W 704. The effect was amazing, however I believe that by removing the spikes the speakers lost a lot of their quickness, and with some music they sound even a little muddy and dull. I tried resting a board on the pods, and the speakers with spikes on top of that, but that didn't work out. How can I get the best of both worlds--the great isolation benefits but also maintain the quickness and clarity that spikes deliver?