On Mon, 10 Sep 2007 06:18:53 -0400, HK wrote:

Many highways have upper and lower speed limits. Fifty five to 60 is
above the lower limit, and, in fact, is the speed at which many towed
RVs travel, so most drivers are used to seeing trailers NOT moving along
at 65 to 70 mph. There are plenty of RVs, towed and otherwise, not doing
65 to 70, either.

And they are a hazzard, forcing everyone into the left lane, causing a
lot of congestion. I stand by my original statement: If you can't
safely tow at the speed limit, you really shouldn't be there.