Can't comment on your hitch set up but the fact that you are invested in it being right is a good sign. I used to commute between Portland and Seattle and when passing towed rigs I would always check out their hitch setup. I think it is a disease, I can't help myself. I hope you are not inflicted with the same.
Last week towing in western Nevada there was travel trailer ahead doing 40 mph holding up a long line of traffic. This highway had soft shoulders with no turnouts. The trailer was swaying all over their lane as there was a mild side wind. As we passed him I glanced over and it was just a hitch on a ball, no sway mitigation. The hitching setups I've seen on Interstate 5 have been just plain scary and many of drivers look like seasoned travelers.
I think you are going to be good.