I am very, very VERY sceptical of orthotropics.  look, form a "wow, thats interesting because I'm strange!" point of view, I like it.

But from a "that's a valid form of medical treatment" point of view, I'm far from sold.  In fact, I'd go as far as to say it is quackery with no place in 21st century medicine.  That guy needs to be be carefully watched, he is going to do some people both physical and psychological damage. 

I'm no orthodontist, but you will have to go a long, long way to convince me modifying a neck brace to turn it into a "forward pull headgear" is the most efficient way of this treatment.  this guy is nuts.