Welcome to the forum.
if doing full 360x180 spherical panos with the Sigma 10-20mm lens on the Nodal Ninja 3 MKII you will get get a partial tilt up. To shoot the zenith (up shot) with this lens you will either need to move the camera/lens forward on the upper rail to allow for full rotation or simply shoot manually (as most do). You could also shoot two rows - one row to catch the zenith (top) and one row to catch the nadir (floor). For many this is not a big deal but thought I would share this.