I do my cork decoys and my herters the same way. I use heavy tarred nylon line. I hunt varied water depth so I have 10 foot lines. I do use slotted bags. Mostly hunt with only one dozen of the cork. Very seldom would I put out all 2 1/2 dozen. Corks were a gift from my wife, herters a gift from my mother. All 20 plus years ago. I do have a half dozen Lifetime foam on Texas rigs if I should walk in. Hunt mostly from boat.