Copolymer is extraordinarily supple, and incredibly strong, so you can choose a lower diameter to help with a natural presentation. The excellent knot strength adds security and the slight stretch of copolymer helps cushion hard-running fish, especially when they are making those last lunges under the rod tip. You’ll also appreciate the clear finish of the line, so important in bright weather on clear water.Do you need help? Do you have any questions?Ask a question and we'll respond promptly, publishing the most interesting questions and answers for others.