by talbot » Thu May 21, 2009 3:32 pm
If you just want to up the boom at the dock, when you expect to spend some time unrigging and fiddling with springlines, then it's works fine to hold up the boom with the halyard. But if you want to rig a boom tent, it really helps to have the halyard to hold up the tack and the topping lift to hold up the clew.
For reefing under way, the topping lift is really important. The racers remove it or tie it down, as they usually don't reef the main in mid-race. For cruising, especially on a day with gusty winds, I keep in rigged at the point where it will support the boom when the halyard is slacked for reefing, but flop clear of the leech with a full main.