Herm Sprenger MAX-Control Full Cheek 16mm Double Joint BitThe MAX Control is a double jointed bit which, at fi rst glance, cannot be distinguished from other double jointed loose ring snaffles. However, it is a correction or training bit which locks at a certain angle and thus becomes a straight bar. The bit lies very well in the mouth when the horse is working properly. When the horse opposes the riders hand the more intensive rigid effect occurs. double jointed training or correction bit locks at a certain