These are two proven ways to straighten fishing line and they work on monofilament lines, fluorocarbon, and copolymer fishing lines.
Swinging Streamers and Wet Flies – Dark Skies Fly Fishing
Landed my first steelhead on the swing! (Beginner questions)
HERCULES Pre-Tied Loop Fly Fishing Leader 6 Pack with Tapered Leader Wallet, 7.5FT - 0X - 10.6LB : Sports & Outdoors
Egg Fly Fishing Secrets by Dave Kilhefner – Flyfishing and Tying Journal
All About Fly Lines - Island Fisherman Magazine
What Fly Fishing Gear Can You Save on, and What Should You Splurge on?
San Martin, Argentina Fly Fishing Exploratory Trip » Outdoors International
Guest post: Fixed Line Fly Fishing for Big Fish by Rob Worthing – Casting Around
Fly Fishing Streamers - Everything You Need to Know
What Fishing Line to use? Complete Guide to Choosing Correctly
Got Trout and Steelhead?