A ring cheek piece introduces poll pressure as well as creating leverage on the mouthpiece, the 2 1/2 Ring version is the softest out of the 3 or 4 ring alternatives as the 1/2 ring softens the leverage on the mouthpiece and poll. Bomber�s new Cable Elliptical applies pressure on the tongue to bring the head down. The Elliptical applies sharper pressure than the control plate, while the cable offers a �spring-back� action together with the elimination of the links joining the 3 pieces which further reduces pressure in all areas, making this softer than conventional Ellipticals.