On the Honda CB1300 I had a Aussie Classic tow hitch, a 50mm ball and swivel hitch on the Classic trailer.
I upgraded from the CB to the ST1300 when I bought an Elite camper trailer. On the ST1300, I originally had a USA Unigo hitch, 50mm ball and swivel hitch. Whist I had the Elite, I also bought another Classic trailer. This Classic came with a poly block on the trailer and an attachment to replace the ball on the hitch. Swapping these around was easy but a PIA.
I sold the Elite, the Classic and the Unigo tow hitch. Selling all these was a mistake, as I now have a third Classic trailer and had to purchase another tow hitch. Unfortunately all I could get is a Classic hitch. IMO, the Classic is nowhere near the quality of the Unigo.
All hitches had a swivel action, unless you have a single wheel type Unigo style trailer, I think you would be crazy not to have a swivel action.
Other tips for the trailer:
- Brakes - some will say they haven't needed them, and they probably haven't. But if you happen to get into a situation where you need 'em, you REALLY NEED 'em.
- Wheels - some trailers have 8", others have 10". My first three trailers had 10" with 10 x 5.00 tube cross ply tyres. If you have tube tyres, you may need a spare. The current trailer has 12" wheels and 165 x12 low profile tubless radial ply tyres. If you get a puncture, it can most likely be plugged.
Just my 2c worth, I have another 2c and then another 2c, if you want it.