WOW...20 mpg towing is amazing. Those old 1550s are nice little units, and so light. We had a 1650 back in the '80s and never had sway control. I think we had the brake controller though. We towed it with our Chevy Celebrity, and it was great. Pardon my nostalgia...we had some good times with the kids in that little trailer
Congratulations to you! I'm sure you'll get many years' use out of it.
Lance 1475 "Snoopy"
2012 GMC Sierra 3500HD 4x4 D/A
2012 Arctic Fox 30U, SUNLINES - 2006 2753 "Tweety", 2007 QUE "QUEtSE", 2364, 1660