confused OK guys, answer me this one if you please.. I have an 8 socket Black Rhodium supermains block to which all of my equipment is connected and it has a separate earthing terminal which presumably could be a point for connection to an earthing spike. I also have a Russ Andrews mains socket (to which the BR is connected) and it too has a separate earthing terminal. Which one should I use and why?

Rod

818v3, QNAP HS-453DX, Roon, 7200SE, ARCAM AVR380, REL B2, Panasonic BD 80, LG OLED, SBox Transporter, iPad, F80. Shunyata Delta NR power cables.