May I point everyone to the Chassis Ground System guide (CGS) from Shynyata that you can download here:
Downloads - Shunyata Research
Copy / paste:
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If a component’s power cord is connected to the Everest — do I need to run a ground wire to
the CGS?
If a component is connected to the Everest with a power cord where the ground wire and AC plug
pin are functional, the chassis of the component will be connected to the internal grounding system
of the Everest through the power cord. You do not need to make another connection to the CGS
terminal.
However, some components may benefit from an additional chassis connection, especially
if you are using common stock power cords.
Try it and see if performance is improved.
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Which to me means that if you already have the Everest (or any power distributor with CGS terminals), there is no harm in trying (you already have the Everest, no extra money to spend for trying, especially with cheap ground wires you can get from anywhere, just to try, before committing money for Shunyata own ground cables)