When you discover a gross horizontal misalignment with your laser alignment system, make the horizontal adjustment and re-check for softfoot. The motor is now in its operating position and conditions under the feet (foundation, base plate, etc.) may have changed. After re-checking and correcting the softfoot, tighten the bolts and re-measure for proper shaft alignment positioning. At this point, one compound move - vertical and horizontal should be all that is required for a precision alignment.