C* blend of pitch rate and load factor
K_C* defines the balance between q and Nz. For a wings level (i.e., zero bank angle) pull-up there is a relationship between q and Nz that is a function of true airspeed. K_C* can be thought of as defining the true airspeed where the q and Nz contributions to C* are equal. Speed up above that speed and Nz contribution to C* is greater. Slow down and the q contribution dominates.
K_C* is chosen such that the q and Nz contributions to C* are equal for a wings level pull-up maneuver at 400 ft/sec. This parameter is constant - no flight conditions scheduling involved.