Perfectionist,
Years ago, I did the same with circular vibration absorbers from Audio Advancements LLC, seating them within the top of the original Aurios MIB's. It reduced slipping of components resting upon metallic top of Aurios. There was a favorable effect on the "tuning" of the system sound.
Later on, I used the Mapleshade Records type of barely compressible triple layer vibration absorbers resting against both the top and bottom surface of Aurios MIB's.
This had the added benefit of self-leveling the original Aurios design, which otherwise did not provide automatic self-leveling.
Since Herbie's seems so good, by itself, I have not tried it along with Aurios. If your experience is that there is a positive, or synergistic effect, then time to unpack the retired Aurios footers.
Years ago, I did the same with circular vibration absorbers from Audio Advancements LLC, seating them within the top of the original Aurios MIB's. It reduced slipping of components resting upon metallic top of Aurios. There was a favorable effect on the "tuning" of the system sound.
Later on, I used the Mapleshade Records type of barely compressible triple layer vibration absorbers resting against both the top and bottom surface of Aurios MIB's.
This had the added benefit of self-leveling the original Aurios design, which otherwise did not provide automatic self-leveling.
Since Herbie's seems so good, by itself, I have not tried it along with Aurios. If your experience is that there is a positive, or synergistic effect, then time to unpack the retired Aurios footers.