The Eggbutt cheek piece prevents pinching of the lips and gives a solid feel against the side of the face. It also prevents the bit being pulled through the mouth. The release is slower than the loose ring and also introduces light poll pressure.
The Ultra comfy has a generous curve, to follow the shape of the horse�s mouth. We have found that the need for softer and softer bits has been growing, as breeding has been producing finer and more sensitive horses.