Answer:

Orthodox Elliott Wave analysts have NO rules to differentiate between a concluding A, B, C zigzag or a still-forming 1,2,3,4,5 impulsion. Fortunately, if you employ advanced NEoWave concepts, there IS a way to decide whether a zigzag (or Triangle) is ending or an impulsion is continuing to form.

It is my discovery that 3-legged corrections exhibit very different TIME relationships than impulsions. Under NEoWave, the fewer legs a pattern contains, the greater the time difference allowed between each segment. As a result, flats and zigzags (compared to all other patterns) exhibit the most significant differences in time between waves-A, B and C. Therefore, if in your developing pattern you measure the time consumed by the first two segments (A and B or 1 and 2), and you find the first takes more time than the second, a Triangle (not a Zizgag) is forming. If the second takes between 100% and 261.8% of the time of the first, a Zigzag or Impulsion is possible. If the second takes more than 300% of the first, a Zigzag is forming.