Varying the uniform pitch angle produces the above set of curves.
Initially, as the pitch angle is increased, the inflow velocity at which the maximum CP occurs decreases and the corresponding value of CP increases. This continues until some optimum value is reached. In this case this value lies between 7° and 10°. Increasing pitch angle beyond this optimum value causes the maximum CP to drops off and occurs at increasing velocities. While CP generally drops beyond this point it continues to increase at higher velocities but you would be unlikely to operate an MCT in this region.
