Audiopoints at audiopoints.com is an alternative to BDR, and are about the same in price. The thing with the audiopoints though, is that they make threaded versions to screw in to your components, but three 'cones' or 'points' are known to be more effective than four. The audiopoints are made out of brass which is one of the best materials to transmit energy. I don't know about bdr. I prefer to use materials that pass the vibrational energy from the componenet instead of using dampening material such as sand or pads that absorb it.
Next tweak to buy?
I have a descent stand and I want to start trying tweeks but dont have any experience with any of them. I have been looking at feet, pads, and the isolation devices that you put on top of and below your components. What do you recommend to try first? What materials and brands are best? Thanks