Tri-Planar grounding question...

Ok. This all makes sense to me now... thanks guys!

WIRES - I see where the screw is and it looks like the washer is in fact attached or soldered to the shielding of the cable.

Is it common practice to attach the ground wire to the tonearm and the shielding together? Wouldn't this create a ground loop? (Just wondering...).

All you cats have been a great help - a very kind thanks : )

I have one more Tri-Planar connection question;

What is the black ground wire (within the cable) attached to on the rca end? Is it attached to the cables shielding or nothing at all?

Atmasphere. I see where the black ground wire exits the box and have opened the box as well to see wire configuration.

The black ground wires which starts from the tonearm pillar DO break up within the box but also continues along the two L/R signal cables as well.

I can't unscrew the rca plugs for a peek since they have been wrapped with heatshrink.