Brian, Check your plans where station #6 1/2 is drawn. You will see a box where Rob states " adjust the half stations to fair the hull," "If a spot on the half station is unfair, use a shim to correct it. Rob goes on to say.... I apologize for not yet having had the opportunity to make any needed corrections to the hull portion or the half numbered stations. What I took that to mean was, the half stations aren't accurate.....I guess that would be called a..."sorry about that."