If you are running a single sway bar you could also add a second for cheap... if p rated tires, air up to the max sidewall pressure... adjust the hitch with a longer shank...
I have Dual Cam sitting in my bucket-o-parts in my shop... made no noticeable difference vs my standard wd hitch properly set up with dual friction sway bars...literally no difference in feel...both were rock solid stable...
If you go with Dual Cam please ensure your install is 'spot on' this set up can grenade parts if you don't do it right. I'm not knocking it as I will probably use it on my next trailer...why? Because if a sway force is applied to the trailer in excess of the friction bars tension the trailer will still sway... the Dual Cam will break before it lets the trailer sway...it's a much more robust system.
Thanks!
Jeremiah