I always used fireline, because I liked it better than spiderwire; it just seemed smoother and slicker, where spiderwire was like course thread. I tried the spiderwire fusion for my tipups, because it was on sale, and noticed it was more like the fireline. I still like the fireline, but the fusion is a great improvement over the regular spiderwire. I only use this stuff when ice fishing on tipups, fishing heavy cover or going after giant fish on light tackle. Otherwise, I prefer good old mono.