I also do round pen work. And yes , it is about getting your horse "with you".
I There are a lot of movements one can do and some are better than others with this "dance with horses" of applying and relieving pressure. What I am looking for is for the horse's mind to be on me. To do this, when he looks or moves away from me and occupies himself with something else, other than looking at me, I will "interupt" that thought. I will do what ever it takes to make him let go of that outside thought. If he choosed then to put his thought on me, then great. He may run when I interupt him , he may buck, but that's his choice. I wait until he makes a choice again; either me or something else. If it's something else, that is the incorrect choice, so I interupt that thought and give him another chance to choose me again.
Once he turns to look at me, I do nothing, and maybe turn away from him. From what you are saying, it might be good for me to actually walk away. I have tried backing up and moving in an arc around to his hindquarters in order to see if I can break him out and get him to follow, but turning and walking away, havne' tried that. But, that does sound interesting and I think I shall try that.
I did a little round pen work today but had to stop before I came to a place where I felt that the horse was really settled on giving me his attention and staying there. Of course, by their nature, horses have very short attention spans, so one must be ready to remind them of where their attention needs to be from time to time.
I just thought that the cost of Mr. Reis training kits was outrageously expensive. It seems they should n't charge more than half of what they were chargeing.