Hi! Thanks for your question. We are almost done writing all of the 2017 explanations for the Big Book and more are going live every week. (We don't provide explanations for the Q and V supplements, so going "back in time" wouldn't help there.) I would anticipate that the Big Book explanations will all be up by the end of this month (July)—so if your timeline isn't very short, then I think you should be fine with 2017.
And thanks for the kind words—I'm glad that you find our materials helpful! Good luck with your studies!