I have used the line conditioner just a few times and it is awesome on Fluorocarbon line. I like to use 17 pound or better and after just a couple days on the spool it has a ton of memory. KVD Line and Lure conditioner applied the night before removes the memory and made pitching baits smoother thus causing less back lashing. I was skeptical at first but now will not use Fluorocarbon without it.