That's why I say when you found 3 questions during postviewing, you're done. You activate with those three questions about 20 minutes see what comes up. You can refine your purpose and questions as you go.

A good reporter only has 3 key questions when they go and interview someone. They stay on purpose of finding out what is being said and keep in mind their reporting goal.

As a reader you're doing the same thing, you're interviewing the author to learn what he has to offer. Keep in mind your purpose and your questions will flow as you learn what the author has to offer. The key is stay flexible. You have 3 questions that's enough. If you have too may questions, you might need to approach more authors on the subject.

Alex