Most folks here know I'm pretty much a steel guy. Not much advantage to be had with fluoro or titanium. For me, steel is the best choice for cut proof performance and flexibility.
Heavy fluoro is OK, is perceived as being "invisible" and I still experiment with it, but it fishes very stiffly in comparison to 20-30# wire. Titanium also tends to be stiff in the single strand stuff. My biggest knock is the stretch it has. At first I thought it was kinda cool, but each time it stretches it fatigues the metal (yes, titanium is metal) and it can give way without any outward indication of weakness. Try the stretchy thing, I was so fascinated I probably wore some leaders out before they even got wet.
Steel is cheap, easy to work with and reliable. Other than an adventure into alternatives, I see no good reason to abandon it.
Just my opinion based on my experiences........... ...user mileage may vary.
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