I have to agree with Alpster as well. I have tried 10lb, 20lb, 30lb and 50lb in either PowerPro, Sufix or Firewire. The heavier lines just worked better, especially the 30lb Sufix. The Sufix casted well, not great, but it held up longer than the rest. With that said, I like 50lb PowerPro better for my baitcasting rods. :-?