Thane struck gold on this one, if this works the way he is explaining it ,it will change the world forever, just my 2 cents but from my experiments this will work the way he says, and under a dynamic load it will be more efficient.The Bi-Toroid transformer employs two secondary coils and a low reluctance toroid core which keeps the secondary induced flux from entering the primary this would normaly cause the primary coil to draw more source current in response to loading. with the back EMF pathway a world of posablitys are in sight.