A fellow I teach skiing with, had a 32ish foot travel trailer, He did not loosen the friction bar up. BUT like myself, we did leave the WD bars full taut! Later I went to a dual cam after loosing a WD bar on a trip over stevens pass..... no real difference that I could tell with a WD vs the DC. I never had a friction bar on the trailer.
If you are in an area that require chains in certain conditions. I preferred the chain chain vs cables when towing. UNLESS I had chains on all fours of the truck, then cables went on the front.
marty
