The UniGo Dealer I purchased from in Ohio told me specifically not to use the Bushtec hitch. It is designed to carry weight, the UniGo requires a hitch that supports side loads, not weight bearing because of how the loads work with a single wheel. I had actually ordered the Bushtec hitch, I then called him about an adapter & that is when I found out what the needs were. I cancelled the Bushtec.
I used the N-Line Hitch as that was the UniGo recommendation. This is a 1" square tube type receiver hitch. He said the N-Line was so good that is why they did not design a hitch for the later bikes.
I have added the only picture I have with me of the UniGo on the back of our 09 with the N-Line Hitch. The hitch when installed, without the UniGo adapter, presents a black wrap around steel band just below the bottom of the fender. I think it looks just fine.
We head out on vacation for 10 days at noon today, before we leave I will snap a couple pictures of the hitch on the 09 without the trailer & couple of the UniGo adapter. I will post them tonight when we get settled in at the hotel.
I will PM you my phone number if you would like to talk.