JTC1

AF777,
"Why not use a hawk and trowel like the pro's do."
Probably because Myron's drywall company is looking to increase production while maintaining quality. I assume YOUR drywall company uses hawks and trowels - carry on! You really do not have a clue as to Myron is - you really should read his books on drywall. Available from Taunton Press.

This video is shakey at best for the average home owner.

The narrator is dealing with a sub-panel as opposed to a SEP. That fact is briefly mentioned, but I'm not sure that the difference between the two panel arrangements will truly be comprehended.

To further confuse the home owner, this sub-panel is equipped with a main breaker (as opposed to main lug configuration) making it "look like" a SEP which is never totally dead unless the meter has been pulled.

Obviously, the supplying breaker at the SEP is turned off otherwise we would have seen some interesting reactions.

A bit of checking that the panel was truly de-energized at the very beginning of the video would have made it considerably more useful and informative. Volt meter on the mains or even a non-contact voltage detector would suffice.

Safety first!