I don't think you understand my fishing friend. They are made to be removable with a clip. You clip them on habitat when you throw them in the lake,
to know where each one settles exactly. They pull fee and wind up as soon as you want. Create the exact shape of cover you want. Then quick before any one sees, take a picture of the layout and pull them all free and wind them up. You wouldn't leave them all out after you have sunk the structure. Now you have a well designed shape of cover only, you know about. Let alone know how to fish it from the best angles and where the spot on the spot lies.
www.structurespot.com