I had a dual cam equalizer on previous trailer.
Now have Blue Ox on current rig.
The new trailer is 1500 lbs heavier and 5 feet longer.
They both exibit(ed) about the same amount of sway.
If you go with the blue ox BE CAREFUL. I went right out and bought
the longest strong arm breaker bar Harbor freight has and supplied my
own socket. That cheezy flat steel handle they give you with the blue
ox is TOO SHORT.
Also you MUST leave ball hitched and crank up the tongue to unload
the spring bars on the Blue Ox. If you don't they can really hurt you when
you try to unhook the chains!!!
Blue Ox is quieter in the turns but my dual cam wasn't too bad either.
I think Blue Ox might be a little better but it also takes longer to hitch
and un-hitch and it's more likely to hurt you if you aren't careful.
Both allow me to back in sharp turns without loosening/removing spring bars.