No trick I know of. On your new sail the buntlines (Those are the lines that hang off the sail) do not go around the boom. They are only to keep the sail flakes orderly. Most mains are not built heavily enough in that area to hold the sail down in wind. I made my own from strips of dacron hanging off squares of dacron reinforcements. But you could use line too. I've been on many boats that don't bother tying them because they want to be able to shake the reef out more quickly. The reefing lines hold the sail down against the tension in the halyard along the luff, and the sail out. They have to be able to resist the strain, hopefully, with minimal stretch.