Huntingdog, I'm sorry but you're wrong on both counts.
Yes, it pushes the trailer back in line but there's nothing dangerous about it. I've even had it in the snow. Is the force "significant"? It is enough to do the job, nothing more. It is easily overcome when turning by the weights involved.
No, it does not use friction for control. It doesn't use brake material anywhere like other systems do. It uses pure spring pressure via the spring bars pocket climbing up off the cam. You could submerge the entire thing in oil and it would still work the same.
Best of luck to you.
Scott
