Actually, it is actually easier with low totem pole horses. The horses don't see them as a threat and usually don't mess with them much, I.e. Basically ignore any posturing they make.
Knock on wood-still-lol, its been a couple of hours now, and they are happy as clams, where one goes to graze, so goes the other. Maybe my social loveable little low-mare will finally have someone to love her back! She had no great luck when she was boarded!