[tongzilla]

Hitters using 10-5-E as their Baseline do not Trace the (Geometric) Plane Line of 10-5-A and hence do not Cover its Arc of Approach. Instead, they abandon the Tracing concept altogether and Cover the Angle of Approach, the straight line -- not curved -- Visual Equivalent of the true Geometric Plane Line.

Hitters covering their 10-5-E Delivery Line also indirectly Trace the Geometric Plane Line of 10-5-A (from which 10-5-E is derived from). But the linear force produced by the Right Arm Thrust may cause the Clubhead to go 'above Plane' during Follow Through. Which is alright as the Ball is long gone.