I think that is a good choice.A single wheel trailer is what I'll be pulling then an occasional cooler rack from time to time. I ordered the Bushtec, wiring harness and Isolator so guess what I'll be doing this winter?
Take a look at the picture of the Rivco above. It is easy to visualize how the frame attachments lock in the up/down and forward back forces. It is quite strong in that regard. However, it is also easy to visualize that the long arms of the structure offer little in the way of resistance to twisting.
The Rivco is a good hitch and has a great reputation. I'm not knocking it. I just think that it has that one element in its design that is not one of its strengths. (no pun intended.)