I have no problems towing with full tanks. 5'er has 4315lbs of payload. We're using 1500lb of that for regular camping stuff. That leaves me with 2815lbs for water. At the most we would have 78 gals of grey/black, that equals about 640lbs. Still have 2175lbs left. The reason we bought a Northwood product is for the in house built frames and the high CCC. I'm not proposing that everyone tow with full tanks, but shopping around and looking at weight margins makes a big difference. Too many units out there with 1400-1600lb CCC. Load up your gear and then fill the tanks and starting driving 100+ miles down the road and maybe those are the people that are having the trouble.
