Any experience with HRS Harmonic Resolution system

I am all for getting a good rack to isolate the components from the environment and to provide the right structure for the shelves that go under the components.

However, I have found that, with respect to the shelves themselves, there is no easy answer as to what it best. It is not simply the case that the shelf that does the best job of draining/dissipating energy from the component is the best. Some experimentation is required to find what is sonically the best for a particular system and taste. There can be cases where LESS vibration dampening sounds better. This is often the case with source components, such as turntables and CD players.

I heard a demonstration using Symposium shelves under a CD player (Aero Capitole) where one could clearly hear differences between the thinner (cheaper) platforms and the better dampening platforms. It was not always the case that "more" was better.

Try the HRS Nimbus puck/disc underneath Stillpoints.

HRS has no sonic signature.

I agree with Rtn1, HRS are indeed neutral and sound undramatic, but they certainly improve the sound, in terms of focus, microdynamics, clearly so.
I found Stillpoints quite different, if anything vearing away from neutrality, more snap, dynamics, giving a more obvious improvement to the sound. In my system, I preferred stillpoints and the price difference.

SYMPOSIUM is more neutral less money much better.