Hi @peteh
This is a common occurrence and nothing to worry about, due to some variations between the fabric pieces each time I cut them. You can trim the edge(s) to fit between the dots/slits, but don’t trim all the way along the seam – simply start trimming at the required width and then gradually make the trim narrower and narrower until it meets the edge of the piece after 20 cm (8″) or so. This minor variation won’t noticeably affect the shape of the packraft.