I towed a friends HEAVY toy hauler with my little 16K husky hitch. He forgot to take off some kind of spacer plate that is used with his slider hitch. In towing and turning with this spacer thing on ...
After discussing the situation and researching, You are all correct about the trailer using a superglide hitch with the capture plate attached. It damaged my hitch pretty bad so It looks like I will be getting a new hitch. The friend said he will pay for part of it. Live and learn.