Hi Bob,
I had heard raves about the SP 101 platforms underneath speakers, but I couldn't afford them, so I was about to buy the less expensive model beneath them, but Robert at Starsound had a returned pair that were completely reconditioned and as-new that he sold me for a great price. I have sounded like a Starsound schill since then, because even though I had used good cones and outriggers beneath my floorstanding speakers, they couldn't compare to the way the Starsound platforms drained the noise that my speakers were making and allowed me to hear the music that they were making.
Having had that experience several years ago, I found out from Robert that he was about to introduce a new platform for components to be used in conjuction with your present equipment rack, or any other shelf you were using called the Apprentice. I got the same results with my transport and my DAC.
So yes, I am a believer. Talk to Robert. I believe he will return your money if you are not satisfied, but I think you will be. These products are the result of science, not snake oil.