Single Pressure Rating The Single Pressure Rating scale looks like...Watch Lesson
The Barrie is a severe bit due to the centre links of the two pieces being offset giving it a double nutcracker action, which creates more tongue and bar pressure.
Excessive bit causing severe pinching of the tongue and bars. Bomber would prefer to offer a softer alternative where possible; such as the Buster Roller, which is recommended for strong older horses or those with a low head carriage.
The Barrie creates pressure points on the tongue due to the links concentrating pressure on a small surface areas. Pressure descends onto the bars and due to the mouthpiece being a single break, it will create a squeeze on the bars – this squeeze on the bars is more than the squeeze created by a double jointed mouthpiece. The Barrie creates two different tongue pressure points which are both concentrated on small surface areas. The two separate branches will also create a lot of squeeze on the bars due to their individual nutcracker actions. The Sweet Iron material was chosen as a metal option as it oxidizes. Oxidization encourages salivation and acceptance of the mouthpiece. The single break, Barrie, is a broken mouthpiece and will take the shape of the horses mouth.