Ready Brake Question

I recently bought a Ready Brake. The install is pretty simple and took a couple of hours in my driveway. I have an adapter to raise my receiver 6". With the adapter, the ready brake and my tow bar there are now 3 receivers so to speak. With each receiver there is some movement and slack. Things seem to be working OK, but I'm just curious if anybody else has dealt with this slack or are you just letting it do its thing and not worrying about all of the movement. I'm towing a Jeep Wrangler fwiw.

Thanks