Did not try, therefor I am guessing: I think if I wanted to try this it had to be with a "stiff connection" to the bike, not with the normal "hinge" near the seatpost or rear hub. This way that hinge effect would be at the front axels steering bolt. Hope this makes sense.

Anybody tryed this? I guess an advantage could be to get all the weight on the trailer and therefor remowed from the bike. Disadvantages would be the strain on the towbar, especially if a long one is used to attach to the seat tube.

Maybe with a specially made atatchment to the bike like for the BOb trailer or extrawheel trailer.