The creators of Myler Bits, Ron Dale and Bob Myler; offer a philosophy behind each of their bits. The Bit is a communication tool, and to effectively communicate with your horse, they must be relaxed. If your horse is resistant, he is not effectively receiving your message and needs a different bit which lets them relax.
The Myler have designed an entire bitting system to effectively communicate with any horse at any level of training. Based on bitting a horse appropriately through his training, the system works by releasing points of pressure and using softer bits as the horse progresses.