I have a stack pack system, with lazy jacks, the mainsail
is a heavy, and bot fully battened. When I bought the boat, the lazy jacks were virtually fixed in place, (the top of the system was fixed to the mast).
I fitted a small block each side of the mast where the lazyjack system had been fixed, and extended the lazy jacks to go through the blocks, and back to the base of the mast, where the are cleated. In messing about with the stack pack, I found that there were securing straps inside the pack, so now, when getting ready to sail, the lazy jacks are slacked, and the stack packs is lowered and secured to the boom, I use a rope
around the sail/boom to keep things tidy until the sail needs to go up. nothing to flaps about, and the lazy jack system remains in place, slacked when sailing, or tensioned when the sail is to be dropped.
As the sail is heavy material, it does need a bit of pull on the leach to get it to stow neatly on the boom. If the weather
conditions make it difficult to stow the sail, it just comes down any old way, secured with rope
, and sorted out once the boat is secured, and conditions are easier to tidy up the sail.