Looks like I pulled the trigger a bit early on this one, and eventually there was no Failure, the doubletop dropped without one.
What I thought to be a Failure was just an SMA bounce. It also happened a bit earlier than the failure zone. The correct zone was around 1758-60 and as this chart shows the price went through it without even trying to reverse....
Here is an interesting one. Usually the Height is measured from the 1st bottom to the Midpoint of the W, but here it worked out measuring the Height from the 2nd bottom to the Midpoint and it still dropped the amount of the 1st bottom-Midpoint measurement:
(chart is 5 days/15 mins)
Thanks for the info here Pekelo . I have been using the "Pekelo" dragon as a continuation signal and find it to be reliable . I found the retracemnet can be up to 62 % before the failure point .