i use the M&G system with mine. i have driven it without hooking it up and i am not sure i could tell any difference, but it is required in most states and it was comforting to know i had it coming down a 11000 foot pass at a zillion percent grade.
to each his own....
i do have to think larry has it right in that the weight of the car is on the tow bar pushing forward. however, i guess you could say it pulls on the tow bar perhaps as much as pushing....i dont know.
doesnt matter because i have it.
i picked one that was always there and just needs to be plugged in each time. no box sitting on the floor and nothing pushing on the brake pedal.
later
tom
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