Here's my novel....
Arthur used to be (and still is) a very barn-sour horse with huge separation anxiety from his miniature mare "girlfriend". I couldn't ride him away from her without pathetic screaming for her, and on the way back to the barn he does a Corto in place (gaited) with a gorgeous headset because he wants to get back to her so bad. I researched horse trainers in the area and sent a message to 20-some asking for advice. Only a few got back to me. One suggested the lungeing near and away from the barn thing, and I'd tried that before with no success. The other two suggested Parelli right off the bat.
Now, I've always been VERY skeptical of Parelli. I like the Monty Roberts, the Clinton Anderson, I didn't thik much of Pat and his methods. I decided to try it, however, and one of the trainers offered to send me copies of the dvds as I need them.
Right off the bat, Arthur did not take to it. He's a bombproof solid horse that would rather put up with you smacking his chest than back up. For fair we did trail and it took me a solid 6 months to teach him to back up and turn on the forehand because he's so SOLID! He doesn't move with the Parelli "porcupine" or "driving" games, no matter how I try. He also doesn't understand lungeing and is completely desensitized to lunge whips. I quit doing parelli with him simply because I couldn't. I started doing it with Molly, though.
Molly has been amazing at Parelli. We started in probably october, and she's taken to it like nobody's business. Not only is she so much more concentrated on what I'm doing so she can adjust accordingly, but she has gotten a lot less spooky through Parelli. She's always been very sensitive, jumping at little things, but through the Parelli "friendly game" I can put anthing on, near, or around her and she's not even phased by it anymore. I can have my back to her and toss a rope around her nose, near her eyes, on her ears, anything, and she trusts me enough to do it without hurting here.
Bottom line is, parelli is good for some horses and is not for others. No one but a professional is going to get Arthur to play the Parelli games, and that's just how it is. Molly is spectacular at it, and will probably go far.