The saddle is designed to be aligned level with the ground from the nose to the rear of the saddle. (I suggest using an actual level to measure.) Some people prefer a slight downward tilt to the nose of 1-2 degrees, although it is recommended to begin with a perfectly level saddle orientation. The fore/aft position should be such that the rider can remain over the widest rear support surface while riding. (Some people use the KOPS technique to align the rider, however, it doesn’t really matter as long as the rider is able to remain over the wide rear support surface.) The saddle should be pointed forward and not rotated to the side.