Reader Mark noted that if Dustin Johnson looked at his yardage book he would have seen yardages. He asked if I could procure a copy of the 18th diagram. After a search, Mark himself came up with it and shares the work of Stracka Line. Not much grey area here. Though in Johnson's defense, I never saw him look at the book. But there is also a missing gap in the CBS coverage where he purportedly was approached by the PGA's walking official, David Price.