Traditionally, tatters have been using the Shuttle/Lock Join to anchor the shuttle thread to a previously tatted element prior to wrapping the bare thread in a manner to create a line of double stitches back to meet the tatted portion of the chain. This bridging technique is commonly called the Split Chain. This shuttle/lock join makes for a lumpy look and today's tatter can enhance the appearance of the tatting by joining with a lark's head picot join.