This is an excellent list that I will be bookmarking. Thank you. PT 29 Section 4 Question 24 is illustrative. A very complex weakening question containing causation.
I've been really looking into sufficient/necessary flaws lately. A particularly difficult way in which the test writers described the flaw appears on PT A section 4 question 20.
... them. You can revisit the question(s) after you learn more ... point us to a specific question or two that you particularly ... or telling us the PT number,section, and question number. Perhaps we will ...