I am 60 pulling a 20'. The speed that my wife and I find confortable for towing is between 55 and 60mph. Will be pulling a little slower this year though, bought a new Durango and the specs say "50 mph for first 500 miles when towing"!
Ron & Cindy
2013 Cruise Lite FS 185RB (a.k.a. LeeAnn)
2014 Dodge Durango
Loyal Companion - Lucy our ever vigilant rescue.