Hi, Andy,
First, thanks for putting this series together. Good job!
But... this article seems to contain a typo not mentioned in yet the discussion:
After fig.35, the text
"Script Task 3 will execute after either Script Task 4 and Script Task 2 executes and succeeds."
should read as follows:
"Script Task 3 will execute after both Script Task 4 and Script Task 2 execute and succeed."
Correct?