Thanks everyone. Payload isn't an issue. I have 3,990# capacity and a pin weight of about 2,000# give or take. I wouldn't be putting too much in the bed of my truck. Portable 3100W Champion Generator, a filled cooler or two, firewood if not going far and within the legal range for transport. That kind of thing. I just wasn't sure if there were restrictions because of the hitch and kingpin swivel. Obviously you can't pack stuff so high or close to the hitch that it interferes with that motion but otherwise pack it up with what will fit with whatever isn't going to blow out?