Hey 2Harley2Haul, I have my Ultra Classic and, since we full time in our RW 405, a lot more stuff in our garage and I don't usually have any issues with swaying (occasionally with pretty high winds) so I agree with the posters above concerning your pin weight. If you are going to the national rally they will have a crew that weighs each wheel and can tell you all you need to know about your weight and balance...if you have a truck stop that has the CAT scales, or a few dollars you can get you rig weighed there - but this will only give you the tow vehicle's weight and the weight on the on the rigs wheels then go and weigh the truck alone - subtract the loaded weight o the truck and the unloaded weight and this will be your pin weight. Pin weight should be between 15-25% of trailer weight. One other thought, what are you pulling the rig with? If tow vechicle is overloaded this could contibute to the sway problem. Welcome to the forum and good luck in your travels