Thanks.Lower line in bow frames is for the lower beams on inside of the bow. Upper line is cut off line. Don’t really need to mark that because it’s basically 2mm below the upper part of the notch. In addition when you cut the jig off, you cut it 10mm above that line and file or sand flush upper part of ship after planking bulwarks. So I did not use the upper mark.
The deck beams are flush with the lower part of the notch, no line needed.