GBP/USD - снижение к 1.0700 уже не за горами.

Leading Diagonal

It has recently come to light that a diagonal occasionally appears in the wave 1 position of impulses and in the wave A position of zigzags. In the few examples we have, the subdivisions appear to be the same: 3-3-3-3-3, although in two cases, they can be labeled 5-3-5-3-5, so the jury is out on a strict definition. Analysts must be aware of this pattern to avoid mistaking it for a far more common development, a series of first and second waves, as illustrated in Figure 1-8. A leading diagonal in the wave one position is typically followed by a deep retracement 
 Т.е. из этого Прехтер формирует краткие правила. 

 А вот текст из его же труда 1978 года:

Leading Diagonal When diagonal triangles occur in the wave 5 or C position, they take the 3-3-3-3-3 shape that Elliott described. However, it has recently come to light that a variation on this pattern occasionally appears in the wave 1 position of impulses and in the wave A position of zigzags. The characteristic overlapping of waves 1 and 4 and the convergence of boundary lines into a wedge shape remain as in the ending diagonal triangle. However, the subdivisions are different, tracing out a 5-3-5-3-5 pattern. The structure of this formation (see Figure 1-20) fits the spirit of the Wave Principle in that the fivewave subdivisions in the direction of the larger trend communicate a «continuation» message as opposed to the «termination» implication of the three-wave subdivisions in the ending diagonal. Analysts must be aware of this pattern to avoid mistaking it for a far more common development, a series of first and second waves. The main key to recognizing this pattern is the decided slowing of price change in the fifth subwave relative to the third. By contrast, in developing first and second waves, short term speed typically increases, and breadth (i.e., the number of stocks or subindexes participating) often expands.

0104.nccdn.net/1_5/1d1/31d/37b/A.J.-Frost--Robert-Prechter---Elliott-Wave-Principle.pdf

 Т.е. он думал. думал и передумал. И в новой редакции написал по-другому. Но это его личное мнение, а не догма. 
  Поэтому старшее поколение в а… уе от того, что пишут более молодые, читавшие только издание от 2005 года. в том числе присутствующие на этом ресурсе. Этот вопрос нужно обязательно поднять. 
 Жаль профильный форум умер, там много ребят с середины 90-х размечают.