We flat tow and have the hooking and unhooking thing on our Focus down to 5 min for each. We pull that with our Class C 31W and barely know it is there. Flat towing adds no tongue weight so it is best when you are already close to your GVW. We are maxed out on GVW but have plenty of combined weight left, that's where flat towing is better. We use Blue Ox system and it works very well, aluminum bars, again for weight.
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