The Bradoon and Loose Ring allow for immediate release and relief from tongue and bar pressure. The bit is immediately reset to a neutral position in the horse's mouth.
The Mullen distributes pressure evenly over all the structures of the mouth, while this avoids pressure points, it does make the Mullen a fairly strong bit. The material used allows the bit to remain light and it encourages salivation. It is particularly well suited to horses that object to metal mouth pieces.