Question: what is the difference between fluorocarbon line and leader?
Answer: The leader is harder and tougher to scrape and damage on rocks, oysters, etc. The leader will be less pliable and stiffer. In contrast, the fluorocarbon line is much softer and will scrape, cut and damage easier. The fluorocarbon line is softer and limper so it can be put on reels and cast easier.