ORIGINAL: da Rock
The arrow speed is not much at all during the time the planing is supposed to be happening. Also, the planing is supposedly done by the time the arrow is up to speed.
The arrow is at maximum speed as it leaves the bowstring,
gregow said planing happens in flight, not on the bow. From slow motion pictures I've seen of arrows in flight the shaft oscillates about 3", probably at about 50Hz.
gregow
What you drew is close to what I tried to describe, the rotating of the blades should help stop the planing also.