There are different ways to rig lazyjacks, depending on your preference and your sailboat's configuration. One common method is to attach a small block on the mast where the lazyjack control line will turn and come down to deck level. Then add a cleat on the mast where you'll cleat off the lazyjack control line. The control line will run through the block and split into two, three or four legs that will attach to the boom or a stack pack. You can use snap hooks, eye straps, or pad eyes to secure the legs to the boom.