[Yoda]

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.

No, Leo, as stated above, Hitters utilizing the Angle of Approach procedure do not Trace -- directly or indirectly -- the true Geometric Plane Line. Doing so would imply the use of the original Plane and that simply is not the case. Again, the Hitter using the Angle of Approach procedure totally abandons the original Plane.

Remember, just because there is a straight line Angle of Approach arbitrarily associated with a given Plane Angle, that does not mean that you Cover it during the Stroke. Instead, you cover the curved line Arc of Approach. Therefore, should you choose to Cover the straight line Angle of Approach, you cannot remain on the original Plane.

Admittedly, this is tough stuff. But keep incubating, everybody: You'll get there!