i've used seaguar,berkley and stern.did not like any of them.i use spinning tackle,and in my opinion flourocarbon is too stiff,it "jumps" off the spool.knot stenghth wasn't as good as co-polymer or mono.flourocarbon sinks making it a bad choice for top water.i saw no added sensitivity with it.the price is also more than mono or co-polymer.one advantage that i did like is that it has less strech than mono or co-polymer.