I have Sufix 832, 8lb on my casting set up. I like it a lot, it sink faster than any other braid, I can feel crisper bite since they don’t make big bowl underwater. I was looking for 4 lb for my spinning, as you know, the only available is 50yds ice braid version. Like now I have 4lb Fins windtamer on my spinning reel but have 4,6,8lb Nanofil coming to try out. If these doesn’t work I might try Fireline crystal next.