OK, your F250 is basically the tractor. Your hitch is adjusted so the rear wheels on you truck have about the same load as the wheels on the trailer and the steering wheels on truck have about half to a third of the load that its rear wheels have and you probably have electric brakes on the trailer.
Basically, the trailer weight is distributed between the front and rear wheels of the F250.
The Elio with a tongue hitch would be a whole different story. How you load the trailer controls the weight on the single rear tire and the weight load on the front driving wheels.
Really big difference!
A trailer with a total weight of 300 lbs (including cargo) isn't going to put much weight on the hitch no matter how it's loaded...