I had the typical steel triangle straps and try to avoid hitting the ground with them. Usually I am successful, this time they were crushed about three inches
This last time I had no problem entering the gas station but it was quite a jolt going out. Lesson learned.
Obviously the roller only has to support the small portion of the total TT weight in contact with the ground. Still, it has to be stout and able to withstand the under trailer environment.
A swivel sounds like a good idea, it would be guided by the TT wheels. Now I need to know how big a roller and where to buy them.