I haven't. I just finished reviewing the valid and invalid argument types and I was more confused on how it would be presented as a question if that makes sense. But that gave me a better understanding on how it would be shown.
... colloquial definition of what a valid argument actually means and how ... . I used to view the valid/invalid arguments with a similar ... of confusion.
Though it's more ideal to be able to not diagram on those questions, when I have the urge to diagram during timed, I sometimes diagram on the questions by underlining words and drawing arrows to indicate conditionality. Saves time.