My trailer has a large trunk for storing the spare tire, the jacks,
awning braces, and even the dolly, which is a HEAVY thing with gears and
chain drive. The wheel locks, jack, you name it, was all in the trunk, as
there is no other place to store the big things.
I have never experienced any sway even with no sway control hooked up.
Surely the designers would not have done this if they thought it would
cause the trailer to be unsafe.
Al