Its Billy Berger. I'm sceptical, but Billy has been working for a long time to make a name for himself, and I doubt he would risk it on snake oil. I dont know what can be so special about this new method, but it's hard to believe there could be one at all, using primitive methods anyway.
Maybe keeping the back cool, but baking the bow as Badger suggests, the trick would have to be in the treatment of the back. Keeping it elastic after a heat treat. Perhaps they soak it in antifreeze to prevent the back from losing its elasticity at all, and bake the entire bow.