A quick shakedown spin with everything in place yielded 29.0mpg fer the 15 mile round trip. Nothing fell off or got ripped off. I did notice my vertical truck based gap cover wiggling just a little. I might have to tighten the bungee cord to keep that tighter to the truck. The vehicle/trailer package seems to be pretty stable. Trailer is unloaded fer the moment and bucking doesn't seem as bad as it did loaded with luggage and the fiberglass tub.
The combo does seem to coast much further and faster as I now have to use my brakes in some of the turns around here.
I've added some Harbor Freight high visibility tape around the trailer. At least I've taken care of that issue.