Bombers Eggbutt 2 1/2 Ring Control Plate Bit2. 5 Ring Eggbutt by Bombers Bits Control Plate is set at 45 to follow the contour of the horses tongue. Consequently, a horse who uses his tongue as a means of pushing against the bit and therefore taking control, will draw back and tuck his chin in, coming back to a better point of control. This differs from a Dr Bristol which sits horizontally with the edge of the plate on the tongue. A Ring cheek piece introduces poll pressure as well creating