Have fun in the Vaporfly's big nuts. I haven't scanned the NSC Runners Strava group for a bit but I think I saw that you've been hitting some really nice quality track sessions? Sub 18 to finish up the year here we come!
What is the book? I'm looking for a new book to get into.
https://www.waterstones.com/book/endure/alex-hutchinson/9780008308186