Four down towing is the most popular for a reason. Its the easiest to deal with, and once at your destination, no dolly or trailer to have to deal with. Its expensive to get set up, but once done, its done, until you trade toads, or motorhomes. Downsides are, expense to set up, sometimes a real pain to connect, once connected you might as well forget that your motorhome has a reverse, because you will not be using it with the car back there. we towed for years with a large DP, never had any real problems, now the DP is gone and we have a little Gemini, which can and has towed our toad, but I don't see towing over any major mountain ranges in our future.
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