A tip I would add is that when you quit the line, and run upstream to pull anchor, run STRAIGHT upstream parallel to the other anchor lines. And go FAR upstream before making any turns. You may have put 120' of line out, but you cannot tell if your neighbor has perhaps 240' or even 300' of anchor line out. If you turn too soon, you'll drag your anchor across the bottom and snag their rope.

Giving other hogliners an un-requested tow is very bad form at least, and can be very dangerous at worst.