Not sure I understand your method but would like to. Sorry to be a pain but could you give a little more info. Thanks
1.Thread the line thru the sail. (a dab of cyano on the tip of the line to harden it helps it to pass thru)
2. Fold back both sides of the line against the sail so that they lay as though hanging in their normal perpendicular position.
3. Run needle/fine thread thru sail just below spot, and adjacent to the line, where it passes through sail.
4. Pass needle/thread back on other side of line, ensuring that both sides of the line lay within the thread loop.
5. Tie off loop(minute spot of cyano to secure knot - don't get any on the sail coz you'll never be able to remove it, and trim.
Can't draw to save me life but hope this helps