I bought my trailer at a dealer, they set up the hitch. Being new to travel trailers I finally figured it out after the trailer was loaded with all of our stuff. Everything about the original set up was wrong. I have finally tweaked it to where I am comfortable with it. I have a ProSeries WDH with sway control...the bars are 1400. I added some rear suspension blocks to my Cheverolet plus I added a Friction Sway Bar that I purchased from Etrailer.com. I never adjust tire pressures for what they are set at the tire dealer.