the auto retract is so you don't bend your tabs when loading on a trailer or when its picked up with a fork lift at a dry stack(they trash a bunch of tabs), its a nice feature, but not absolutly necesary unless the tabs interfear with your trailer or you stack.I understand now that on some models they include a switch to auto retract when going in reverse so you don't rip the tabs off when backing down too fast(seen that also)
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