Run 4 Degauss Pole Tip Measurements Switch Closed PTF Switch Open PTF Middle Chamfer Edge (G) (G) 1.0 -0.4 -0.4 1.1 -0.3 -0.2 0.9 -0.4 -0.3 0.9 -0.4 -0.4 Mean 0.975 -0.375 -0.325