Hi, our Occupational Therapist (OT) for difficult child 2 is suggesting something called the Listening Program by Advanced Brain technologies. Has anyone else used this? And what were the results? It is expensive so I'm researching it before buying. Also, has anyone heard of a Dr. Joel Wallach. He is proporting helping people like our children using minerals. Wondering if anyone has experience with this. Snakeoil or real deal?