Schubert, you might be onto something. In the past I've always used Herbies with great results. The components used were of moderate weight and benefited from the Tenderfeet. Being so heavy, I just plunked my Marantz reference amp and SACD player on my maple rack as is and was satisfied for the last years or so. For an experiment today I put some large Tenderfeet under the SACD player and the highs got a bit muted and the overall sound became veiled: the exact opposite of what I've experienced in the past (insert head scratching here).
Someday I may check out the Nordost BC cones but I'm getting such great sound with the heavier stuff just sitting on the maple stand. That, and I don't want to mar the surface of Chris's work (Timbernation).
All the best,
Nonoise