Just let out 10 to 20ft of line with lure or bait, attach releaser, then let out more line to your desired depth. Rig with various size sinkers for drifting or trolling to get baits deeper in seconds. Use 1oz for every 10 to 12ft as a general rule to put you in the fish. This calculation is at 2mph trolling speed. 4617-0009: Length: 1.75" Weight 1/2 oz - 12 oz Fishing Depth: Unlimited. 4617-0010:Length: 2.5" Weight: 2 - 32 oz Depth: Unlimited.