The depth of a corrective wave tends to end within the range of movement of the fourth wave of one minor level before it.

Conclusion: Sometimes, flat or triangle waves, especially those following an extension, will not reach the fourth wave position (Example 3), but usually the distance is very close;

Sometimes, a zigzag will drop sharply into the second wave area of ??the previous minor wave, but this happens almost exclusively when the zigzag itself is a second wave, a "double." end".