3-ring LEFT 1 11 2 8 4 5 7 Bottom of ripcord pocket Ripcord pocket velcro Top of ripcord pocket I 10 3 6 9 The standard rule of thumb for the sum of these  patterns is approximately .75 inch for the length. In  other words, the marked length of the MLW should be  .75 inch longer than the desired finished length. Most  of the shrinkage is in the ripcord pocket and the leg  strap junction. If the rigger has not done this operation  before, he or she may want to build a sample MLW to  check the measurements and the resultant shrinkage. 9.  Sew the Velcro ® in place for the ripcord pocket.  [Figure H] 13. Position the 3-ring at the mark on the main lift web  and glue in place. Install the Type-12 confluence wrap  below the 3-ring and mark the 4-point W-W pattern.  [Figure K] 14. Sew the confluence wrap with the harness machine.  [Figure L] 15. Re-create the leg junction. Glue the upper leg strap in  place first and then the horizontal back strap second.  [Figure M] 10. Glue the chest strap in place. In this instance, do not  forget the housing loop. 11. Using the single needle, pre-sew the front and  rear main lift webs. Use of the sewing pattern in  Figure I  accomplishes this and at the same time creates  the ripcord pocket. Sew the chest strap 3-point W-W  with the harness machine.  [Figure J] 12. Reassemble the upper diagonal back strap and the  3-ring hardware by threading the rear riser through  the large ring followed by the front riser. 7-61