I haven't had any problems at all since using the sway bar.
I kinda wondered if 2 of them would work against each other.
I had a bad episode 2 yrs ago(before using a sway bar),
that's why I was wondering if maybe 2 would be better than just 1.
I don,t EVER want to go thru a scare of a lifetime like that again with our "52" Ford P/U and trailer.
Also, since then,
I now use the brake control and electric brakes
that we're already on the trailer.
I think I installed the brake control about 2 days after that episode.