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The short answer is no. I don't use Fluorocarbon, but have heard of issues with it if you fish outside.
I tried fluorocarbon suffix this year, I lost 3 fish in 3 outings...that crap came off and I switched to Pline. I was using braid for years with great success but wanted to try something different. I would use braid or Pline again in a heartbeat, fluorocarbon...NO WAY.
Just curious, what kind of knot were you using? Line doesn't just break for no reason unless you somehow got a bad batch.
I used palomar and improved clench. I talked to the guys at scheels and they said many customers had been having issues. In the garbage it went!
. I have used fluorocarbon line for years and have yet to fish in a shanty. Never had any problems, I guess what ever you have the best luck with, use it!!