Drilled the forward VS spar, starting at the LASER pointer mark at the intersection between the forward spar and middle rib. This time I found it useful to create clear polycarbonate strips with a centreline drawn on, then clecoed at the middle and marked for the rest of the holes - these can then be clecoed over the skin and used as a guide for the rest of the pattern. It worked well, but you have to keep checking the end is lined up with the extended spar and rib centrelines.
