During free wall depolarization, is direction of deflection

During free wall depolarization, is direction of deflection

  1. from right to left

Or

  1. from left to right?

(Both these directions are mentioned in video of ECG Edition 5)

Since the deepest S wave (–ve wave) is produced at V1(right side lead),

Right:–ve

Left :+ve

So direction must be from right to left. Isn’t it? Please explain !

Since the left side has shorter bundle branch, left will always be the first one to depolarise and then right.

Then how can the direction ever be from right to left? (For getting the tallest r wave in V5 and V6)? Please explain