No grounding wond required with this accident the load was on the ground (tower frame)
, If wire rope is used and a path for static electricty is the rigger let the new guy go first.
If the line is spectra or kevlar no shock.
belly hook ,longline to a strop, or a sling with a load.
A grounding wond for static control.
Spent a few years at it. lots of fun
