Talked to ZAC on horn angle for elevator and advised them that the method described in the Constr. Man. won't work since the upper and lower horn are pre-drilled. Buy drilling the Horn Angle when doing the skeleton, its location becomes fixed, and as such, the upper and lower horns don't fit. Solution is to fit the upper and lower horns, then do both the front and real horn angle braces. New horn angle ordered.