I use 8 to 12 dozen decoys, depending on how long it's been since my last "decoy repair day". My goal is always the same; to set up a perfect rectangle, with evenly spaced rows having all the decoys lined up like a marching band. Instead, what with the wind and current, it always ends up looking more like an office chair, or a tow truck, or maybe a flying vee guitar. We put the layout boat right on the upwind edge, or even slightly into the rig, leaving a space for the tender to make a downwind escape. The good news is that it doesn't matter what shape the rig takes. If there are ducks around, they will come over and check it out. With the layout right in the rig, that's all it takes. They will often zoom right in to land near the boat, but even if they just do a flyby over the rig, we've got 'em. Just don't take the goofy fringe shots out past the edges; that's how you lose cripples. Divers can be tough to chase down on open water, especially when they get the head start of waiting for your tender to show up. Get 'em close.