I've pulled my Vibe (can't be towed 4 down) on a Demco KarKaddy dolly for almost 10 years and 50,000 miles. Yes, it is a little more work than 4 down but only adds about 4 minutes to loading & unloading. I've only had two CG that I had to park the dolly other than with my MH. I try to get pull through but if not available I put the dolly at the rear of the site with the dolly tongue underneath the MH rear. You can get a good dolly for about the same as it costs for all of the equipment you must get to tow 4 down. If you trade cars very often you may have to get all new 4 down equipment each time. You can't back up very far with either 4 down or a dolly but you can with a trailer. As I get older I have a little more problem getting down on knees so if I keep RVing I may have to get a towed that I can pull 4 down.
Dave
