Taking it up another notch, doing them both simultaneously was the clear winner. If I listen to a reading assignment while following along visually reading the text, it’s like a one-and-done and ready to take the test at the end of the semester with no further studying.

I believe there’s some research that confirms your anecdote in that kids with reading comprehension difficulties had a much easier time reading when they were both reading and listening to the text at the same time.