A:
Due to the core material in Saltwater lines vs freshwater lines you will need 2 lines for optimal performance when you fish both fresh and salt. Salt lines have a stiffer-core for warmer water and weather and fresh lines have a supple core for cold water and weather. If you were to fish a salt line in Alaska it will be very stiff and all coiled up making it almost impossible to cast. Do the right thing and buy two lines.