A Disturbance Accommodating Controller (DAC)[l1 provides the framework to address the loop design requirements. The first primary function places severe loop stiffness requirement on the capture loop. Briefly, using observer theoryt21, the DAC controller generates estimates of the plant and disturbance processes. A control strategy designed to cancel the effect of the inertial input upon the plant while also providing modified plant dynamics is employed. This configuration yields a multiple integral feedback controller. A type-N servo characteristic results, where N is the order of a polynomial disturbance model. This structure is shown to be similar to other problem formulations[ 3.4.53 which also yield integral action within the modern control framework.