I read a horse book once that went over the exercises that you are supposed to do before starting to work with horses. Can't remember the author or title, but it was VERY helpful for me. I tend to tense up and start to panic as soon as I get to the horses, and it really helped me to center myself which in turn helped the horses respond better.
Anyway, you take a deep breath and envision your entire body expanding and elongating. You picture a balloon attached to the top of your head, which helps you feel straight and tall. You take a few deep breaths each time exhaling all of the stress. the first few times you do it it is a long process where you tense and release all of your muscle groups starting at your feet and working all the way up to your neck (don't forget the hands and arms). The first couple of times you do it lying down, then you do it standing up. After practicing it for awhile you can enter the horse pasture, feel the tension starting, close your eyes, take two deep breathes while focusing on the balloon pulling you up and elongating and breathing out the tension, and presto, 2 seconds later and you feel more confident and centered.
Anyway, it works for me, and I find it interesting how the horses can TELL when I am stressed, and then after I recenter, how the HORSE calms back down.
I have also found it very helpful to do LOTS of ground work. I work on 'the perfect lead' so the horse follows so lightly and well you can't even tell there is a horse on the end of the rope. Whenever he messes up I make him do circles or do mini lunge work.
Of course, I should add that we have 2 horses. Fleet is sweet, I love working with him. But our second horse Buzz pushes you around if he thinks he might get away with it. It is a constant struggle to get him to do anything I ask, and the constant struggle to keep *ME* in check (centered and not stressed) as well as him, is very difficult. I think I could force myself to work with him more, and that things would eventually improve. BUT, he is supposed to be DH horse anyway, and I prefer working with Fleet.
I like the old Morgan......sounds like a great idea!