Originally Posted by 1Oldman
When properly set the chain length setting tunes the tension bars to their proper position. With a ratchet system if someone lacks of understanding the tension principles and how to check the level of the TV you risk over tension of the system and improper weight distribution.
That's the same as the chains of a typical two-bar WD with snap-up brackets. If someone unfamiliar with the setup of that specific trailer and tow vehicle hooks the chain onto the bracket at the wrong link, they will have the wrong preload on the spring bar.
The same thing applies to the nuts of the Andersen No-Sway: if they are tightened to the wrong position, the load distribution will not be as intended when set up.
There are other WD systems with a winch
arrangement for the linkage from trailer frame to spring bar; for instance, the Blue Ox SwayPro
uses "rotating latches" (which could probably be used with other brands of two-spring-bars-and-chains WD systems as well), and the Hensley Arrow uses telescoping spring bar jacks (as does the ProPride copy). From Australia, there's the Trojan Load Leveller HD
, which has telescoping jacks, a sliding bar design (like Equal-i-zer, Fastway E2, etc), and multi-leaf spring bars... it looks better thought-out than any of the stuff I've seen from North America.
It would certainly make sense to mark the strap or note the final length in some way, to ensure repeatable application with this system. It's a manageable issue.