Here is an addition to the Troika, I still don't know what purpose it serves but now it has a Hoop as pictured in my research photos. One item that was mentioned was that in this type of hitch the horses could move at different gaits. The center horse could trot while the outer horse could canter, interesting. I used to have a team that performed like that, one had a bone jarring mile eating trot, while the other always used to canter to keep up and they were never together in strides.100_1368.jpg