Trolling depth with leadcore and planers is all about two levers working together: how many colors you let out on the leadcore to set depth, and how big or small your planer boards are to hold the lines at a desired distance from the boat. In mid-spring, walleyes often move along weed edges and structure at various depths, so you’ll want a flexible setup that lets you dial in 8–20+ feet of depth as the day warms. Here’s a practical, step-by-step approach to get dialed in fast.
Key concepts you’ll use
- Leadcore depth per color: for most common leadcore lines, each color generally adds roughly 2 feet of depth at typical trolling speeds. Actual depth depends on boat speed, line diameter, and lure angle. Start with that baseline and adjust as you learn your system. Leadcore Line: The WHAT, WHY & HOW
- Color-to-depth quick guide (rough but handy): 6 colors ~ about 12 feet, 8 colors ~ 16 feet, 10 colors ~ 20 feet. Use sonar or a marked plan to verify; the chart is your starting point. For more on the basics, check Leadcore Trolling Walleyes Basics.
Two-pronged depth control plan
- Step 1: define your target depth. If walleyes are on weed edges around 10–14 ft in mid-spring, start there.
- Step 2: pick a leadcore depth as your baseline. For example, start with 6 colors (approximately 12 ft) at around 1.5–2.0 mph. If you don’t see bites and your sonar shows fish down 12–14 ft, add 2 colors and test again. How to Troll with Lead Core
- Step 3: bring in planers to place lines at specific widths and depths. Planer boards don’t set depth by themselves; they let you pull your lines away from the boat so you can hold a bait at a precise depth the leadcore dictates. A good starter setup uses 1–2 oz boards for shallower work and 2–3 oz boards for deeper work. See How to Use Planer Boards - Trolling for Walleye for fundamentals.
How to pair leadcore colors with planers for two depths
- Option A: shallow/depth duo (two depths at once). Run one line on a small planer at 6–10 ft using 4–6 colors, and run a second line on a larger planer at 12–16 ft using 8–10 colors. This gives you two distinct depths without re-spooling.
- Option B: single-depth, deeper push. Use 8–10 colors with a mid-size planer board to hold bait at roughly 14–18 ft. If the bite slows, add 2 more colors to push to 20 ft.
- Option C: test and adapt. If the fish stay shallow but your surface water is warm, drop the planers closer and use fewer colors; if they’re deeper, extend colors or go with bigger planers. You’re building a pattern you can repeat.
Practical tips that actually work
- Tie your leadcore to the lure with a strong, smooth knot and use a small, clean snap to keep lure action crisp.
- Mark your leadcore by color to track depth quickly; this helps you adjust on the water without guesswork.
- Keep your planers spaced and tangle-free by starting with a conservative back-reef distance (roughly 40–60 ft) and adjust as you learn current and wind effects.
- Boat speed matters: slower speeds often deepen leadcore bites; tiny speed tweaks (0.2–0.3 mph) can shift depth by several feet.
- If conditions shift (wind, clouds, river clarity), your depth window shifts too. Use the season cue (mid-spring) to anticipate fish moving between shallower beds and deeper edges.
Gear notes
- Planer boards and leadcore are a powerful combo for depth control. Two solid choices to get started: 2 Pcs Fishing Planer Board set and Leinuosen Planer Boards.
- If you want a broader view on setup, these videos are a great guide: Leadcore Trolling Walleyes Basics, How to Troll with Lead Core, and How to Use Planer Boards - Trolling for Walleye.
Bottom line: start with a solid baseline, then use planers to position your lines at two reliable depths. Tinker with color counts, planers’ weight, and boat speed until the bites come. With a little trial-and-error, you’ll be dialing in consistent takedowns. Tight lines and good luck out there! 💪🎣
