Good information except the statement found in the "house detective section"
under the two-pass method section just after the intro.

link to the problem section:

Field Training Manual - Student Edition

quote from the text:
While the second passes are more intense and absolutely necessary, it is a rare circumstance when major problems are detected that were not identified during the initial pass. The bulk of discoveries from the second pass tend to concern the more minor problems.

The above statement is pure BS, the attic, electrical and crawlspace are done during the second pass!