spring brown downrigger question in Questions About Trout & Salmon Trolling? Posted March 23, 2011 For spring browns stick baits and flutter spoons both work. Browns don't like the flash of a flasher like coho's so no need for them. Lead length depends on the color and depth of water. If i'm trolling a mudline i'll keep a few as close as 40 feet back to as far as 100 some days. If you find a warm pocket that is pretty clear then don't be afraid to stretch your leads even further out to like 150. Stealth is key many times.