Run 4 Degauss Pole Tip Measurements Switch Closed PTF Switch Open PTF Midle Chamfer Edge (G) (G) -2.4 -0.4 -0.4 -2.4 -0.4 -0.4 -2.4 -0.4 -0.4 -2.4 -0.4 -0.4 Mean -2.4 -0.4 -0.4