Electric jack - how do I select one?

Thanks for the heads up on the breakaway switch. For some reason, I had it in my head that it drew power from the 7 pin harness. Thinking that through, in the event of a breakaway.... duh! :S

I'll remedy that before the next outing.

I will also look over several options on ebay / Amazon and pick something. Thinking I'm getting tired of the cranking.