Wiring Joe Street's Electrodes

I decided to attempt to build Joe Street's active electrodes that are
instructed on the site, but I am confused with the wiring of the
electrodes, particularly with the shielding and connecting to the EEG.

For connecting the shielding to the electrode is it suggesting that I take
another separate piece of wire and wrap that around the shield?

The instructions also don't give much detail on connecting these electrodes
to an EEG. Would I just connect two electrodes with the coax cables to a
two lead microphone cable which would then connect to an XLR? How would I
go about doing that? Is there a more direct method?

Lastly the instructions recommends to not connect the reference electrode
to DRL, but to VGND instead. Would I just connect the electrode to the VGND
portion of the circuit and leave the DRL next to it untouched?

Thanks,
Adam

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