Not an NSix-One! Anyway, the instructions on Wilson's website said you can string either one or two-piece. The two-piece instructions are confusing: n6 110 String Tension : 55-65 lbs. String Length : 38' (ss: 10') or (20' M's and 18' X's) String Pattern : 16x20 Start Main : at Throat: Mains skip 7H, 9H, and 7T, 9T. Tie off M's at 6T. One Piece : Start X's at Bottom at 7T. Top X: 7H. Tie off X's at 5H. Two Piece : Start X's at top at 7H. Bottom X: 7T. Tie off X's at 5H and 11T. Notes : The part I'm concerned about is for the two-piece, where it says "Start X's at top at 7H. Bottom X: 7T". What does the Bottom X: 7t part mean...Is that where the last cross is supposed to finish?