As mentioned before I was slowly working my way on to her right side. Well, Crystal figured out what I wanted, as I was inching my way around her head towards her right, she gave a deep sigh(seemed to roll her eyes at me) and moving her head and neck out of the way she stepped her right shoulder up to me, like she was saying, "I've been waiting for you to massage this side too! Just leave my head alone."
The only "don't touch me" spot I have found is her face. She loves belly rubs the most, back and rump rubs are also very high on her list of favourite things, she doesn't mind having her legs rubbed, but doesn't love it. It appears she has been waiting all of her life to have a staff of trained monkeys to feed her, clean up after her, and give her massages.
I would just like to emphasise that there is nothing in my "horse whispering" skills that has been the sole cause of this rapid transformation from wild animal to domestic horse. I give all of the credit to Crystal and her calm majestic personality. She is just fascinating!