As of now I have 4 trailers, 3 single axle and my dual axle TT .
I would like to have 4 tires on the ground while towing a TT .
Crosswinds and bow waves from overtaking trucks , seems to handle it better but that might be because of the WD hitch and sway bar, not really sure.
Dual axle : To support weight , to track straight that offers a little security over just 2 wheels. Think about a flat tire while in motion.
It seems to me that the single axle trailers i tow, jackknife faster than the dual axle while backing. Backing the dual axle, seems to take less effort.
just want to clarify. backing up a single axle seems more difficult with the more narrow bodied single axle. A full bodied TT should back up easily because you can see it in the mirrors. Tire scuffing while turning will be less with a single axle.