hi OldGreyWT,
my library loan Delta book says "The price is one hundred abd seventy-five dollars", ( published 1991 ).
Directors at that time paid $,35,000.
Anyway, OldGreyWT, I agree with you in essence about the "foundation" of Delta, and its reliability for future turning points.
But, Welles Wilder did find that the TPs did not always hit exactly, thats why he conducted an analysis, and showed the Average Range.
Also, further on in the book, he explains how the TPs can arrive early or later based on if the market was "normal", "actual", "weak" or "strong".
These factors can only be ascertained by analysing the market "on-the-day", as it were.
So, although Delta doesnt give guaranteed TPs, it allows a range, which, with a bit of analysis, can be determined. ( this supposes you can see the TPs in the first place )
I am reluctant to "force-fit" TPs, just to prove Delta, that is perhaps, why I dont get the patterns that easily.
I am willing to give it another go - later.
PS: like your id of OldGreyWT. however, your avatar is anything but a "Whispering Bob" !!