I believe the Zig-Zag indicators best use would be to measure the percentages between each "drawn line change" to try and predict the wavelength of the symbol being tracked.
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Install the Zig Zag indicator and follow him in realtime. You will not believe what you see. Even two or three bars later he can suddenly disappear or change direction.
Traders should be aware that the most recent zig zag line may not be permanent. When the price changes direction, the indicator starts to draw a new line. If that zig zag line does not reach the indicator’s percentage setting and the price of the security reverses direction - that line is removed and replaced by an extended zig zag line in the trend’s original direction.