…have used Berkley Fireline Crystal Braid for a few years…1lb to 6lb. Great stuff. Never lost a fish due to line breakage, but it’s a little stiff in very cold conditions and not as supple. Decided to try Nano Braid this season. Also started using Fluoro: Seaguar Invisx 4lb too. Too early to post any results or conclusions. Last years short season I used Stren Orange 2lb Mono., Wasn’t too keen on it’s long term durability,(It seemed to be rotted this early season when I was checking my gear),. but its sure was soft & supple with tiny pin mins & iceflies.