WD hitch TW rating as close to actual TW as possible?

The trailer in my sig has a listed dry tongue weight of 722 lb. Loaded for camping, it's probably 850-900. I use a Husky Centerline TS, which is the same design as the Equal-I-zer, with bars rated 800-1200lb.

It pulls great, with no sway. Passing trucks have no effect. Doesn't seem bouncy at all despite being on the light end for tongue weight vs. spring bar rating. Much quieter than the old school trunnion bars w/friction sway control, too.