...do you prescribe Tracing vs. Line Delivery Path as different strokes for different folks? Or I guess my question is what type of faults does tracing help and what type of faults does Straight Line Delivery Path help?
Both Components are necessary. Tracing the Plane Line keeps the Sweet Spot On Plane. Driving your Hands (and their derivative Thrust) down the Delivery Path directs your Thrust at a specific point on that Plane Line. Of the two, the Delivery Path has priority.