Don't use either. You don't want to absorb resonance, but transfer them to the floor. I agree with all the guys who recommended Starsound's Micro-Bearnings. The difference is amazing. Call Robert over there and he'll give you the sonic scoop to what is actually (scientifically) going on. You'll be amazed. They are on to some really cutting edge things over there. I'm not a salesman. Just a very happy customer. Good luck.
