The Vertical Adjustment Kit by Smart Track allows the user to set the height of the Toe Pilot Foot Control during installation for optimal control. The kit also aids in installing the footbrace in kayaks with pre-existing mounting holes that do not match standard configurations. When using the CLC Footbrace Mounting stud kit, this is required for the Smart Track Rudder systems. This kit is necessary if you want to install a Smart Track Toe-Pilots/Rudder System to a Mill Creek 16.5.