When towing a vehicle it would be nice to be able to allow wire out and in to change the distance the towed truck is behind you. You can bring in the wire by switching to pull but a way to do both in a convenient way would be nice.

An example of a situation that I would use this for: When the following truck is stuck in a mud hole and the first truck doesn't have enough grip to pull it out you could let out some wire and find ground that provides more grip.