Synergistic Research Cable Risers?

  Recenty Synergistic  research  brought out some cable risers.  https://www.synergisticresearch.com/accessories/cable-risers/

  The audio press said they made one of the biggest differences when taken out of the system, then re installed back in. Does anyone have first hand experience with these ?

  That being said, they seem like quite a bit of money for what you get, however if they  work at improving the sound it would be worth it. I do use Synergistic products  which have made a definite improvement in sound but am quite skeptical on this product.