Do you equip your "backup spotter" with a walkie-talkie?

As I cannot see everything through the mirrors, my wife is our spotter. With radios, She tells me, "gentle left" (Move the trailer to my left as I sit in the truck, or "Hard left," which means cut it sharp. Same with the right side.

I focus more on not hitting anything with the front of the truck, and if I can't see her, it does not move.

You have to develop what works for you. If there is going to be screaming, give me some time to sell tickets. :)