I always wondered how ultralight trailers would tow , but seems now they tow just fine

... and from my limited experience the lighter weight doesn’t seem to “launch" over bumps ... less weight, less Inertia to overcome and counteract... The light foamie shell just follows the trailer’s movement and doesn’t Contribute to it ... Contrary to popular opinion , the light weight doesn’t Hop around as once thought

... (saving a lot of ballast

)
Bonnie can probably confirm all this for us

(be sure to ask Bonnie about my street , which is like an off road test course...

)
With the eventual tendency for smaller more efficient cars , trailers will have to be correspondingly lighter .... Might be tough to do in wood , but foam seems to be no problem to keep Light ... JMHO FWIW ?