The most frequently asked question is: "My horse started resisting the bit but I haven't changed anything. Why?" The answer is simple: "Because you haven't changed anything". Think of the horse as a child to use the same textbook in sixth grade or into high school. A horse can't learn efficiently or effectively if the riders continues to use the first grade textbook. The "first grade textbook" is the single-jointed mouthpiece. In addition to the principle of tongue relief and considering the bit as an integral part of the training program, a horse's bitting needs change over time. Resistance is the horse's way of asking for more tongue relief.
Instead of responding to resistance with a harsher or stronger bit, the Myler System rewards the horse for learning by going softer-by giving the horse increasing tongue relief. Therefore the Myler System is a gratuated approach to bitting and be called a "system, a graduated system."
The barrel in the center is not a roller but acts as a bushing, allowing each side of the bit to move independently of the other. When the rider lifts up one rein on a traditional bit of any other brand, the entire mouthpiece moves, creating a confusing signal for the horse.
In comparison, when the rider lifts up one rein using a Myler bit with Independent Side Movement, only that side of the bit moves, giving the horse a very clear and precise signal. Provides exellent shoulder control, avoiding the dropped shoulder altogether. A big support in flexing your horse.
Myler mouthpieces have an anatomic design. This U-shape curve creates more room for the tongue to pass under the bit, so the horse can swallow more freely. When the horse is able to swallow during training, he will be motivated to relax and to be in his comfort zone.
The U-shape provides a more even pressure deviding over the tongue, the bars and the corners of the mouth.
Most Myler Western and English mouthpieces are 12 mm thick, a thickness that allows the bit to fit comfortably in the horse's mouth. Less pressure on the lips, tongue and bars. Some English mouthpieces come in a 14 mm thickness.
In the past it was said that the thicker the mouthpiece the milder. So not true; the thicker the mouthpiece (16 mm-20 mm), the more uncomfortable with to much pressure on the tongue, the bars and the corners of the mouth and not to forget the pinching in the palate.