Run 4 Degauss Pole Tip Measurements Switch Closed PTF Switch Open PTF Midle Chamfer Edge (G) (G) -1.8 -0.1 -0.1 -2.1 -0.2 -0.2 -2.1 -0.2 -0.2 -2.0 -0.1 -0.1 Mean -2.0 -0.15 -0.15