Which does a better job of grounding your system Entreq products or Shunyata Altaira ?

.....I guess nobody owns any of these products and that is too bad as grounding your system can make an audible difference in many systems.  

……thank you and through my conversations it seems the Entreq is more widely accepted than the Shunyata which is also very good 

……thank you and never thought of CAD. I personally would never do business with Synergistic but that is my cross to bear. Will look into CAD…..

……bought a Faber’s Power Grounding Box. This company is located in Italy and was wonderful to deal with and a great product and a better price . Listened to a few grounding boxes and I own the TriPoint Thor Signature and love it on my amp and pre-amp but really like the Faber’s Power on my front end digital. Take a look at this company as I do not think there are any dealers here in the US but their grounding box is very good . So my search is over and ended up with what I think a better product and price .