Unlock the Depths: Lead Core Trolling at Crowley Lake. Ever wonder how to consistently reach those deep-holding trout at Crowley Lake? Lead core line is the secret sauce. It sinks predictably, making it perfect for trolling spoons and minnow baits at just the right depth when the bite is deep. 💡Tip: Count your colors—each one drops about 5–7 feet depending on speed. Add a fluoro leader for stealth and you're in the game. 🧰 TackleExpress.com carries the top brands in lead core line, trout spoon