I am building a sub and i am in the market for some subwoofer feet. While i was looking around, i came across the vibrapods. i was wondering if anyone uses these, and if so, how effective are they? I am wondering if it is worth justifying the $8 per cone cost of these things. I will probably need 6 of them for my sub.

They are for sale here if anyone wants to know what i am talking about
http://www.thecablepro.com/viewCat.php?catID=18

Like many things on their site, they're probably overpriced. But $8/each on those is not as bad as spending $70 on a y-adapter.

no one has used these before? i understand why they are $8 each, because they arent just spikes, but have some kind of spring damping system built into them with the ball tip. Its $8 everywhere, not just that website. Still justifying whether its worth the $48 for 6 of these.