I have discovered that the soap dispensers and sprayer can be tightened a little after every trip. I have worked this into my before travel and after travel routine. We don't want blue stuff all over the floor again. I don't think I have a tire balance issue because the trailer rides too smooth. The trailer rides better than the truck. Also I don't see any wear on the tires. On my previous trailer the tires wore unevenly. I put new 8-ply radial tires on it, balanced the wheels, and snugged down the bearings one notch on the curb side. That made all the difference in the world. That having been said, the Airstream still tows better than that.