Originally Posted by Aizoo Guy
snip.......The problem is, given enough force, that friction can be overcome...it is possible, even if it is not probable..........snip
I have a number of friends using the HA and love them, they wouldn't consider anything else. IMO the HA and ProPride are superior WDH's when it comes to the topic of integrated "sway control", but like all sway control products they all have inherent thresholds and/or vulnerabilities.
While in-tow and under the pulling weight of the TT the HA hitch is in a "locked" condition and is an extremely effective sway control product. It should be noted that the HA is vulnerable in effectively controlling a sway event when the hitch is in an "unlocked" state (lateral movement within the hitch takes place)...., which is the result of the pulling weight of the TT being removed. The "unlocking" condition can be created by TV brakes engaging before TT brakes, exhaust braking, and in some cases transmission downshifting.
My knowledge on the operation of the HA is a little dated, so it's possible the HA "unlocking" condition may have been addressed via recent design change.
I'll apologize to the OP for shifting a little off topic.....