So I am connecting some florocarbon leader material to my fly line and the knot kept breaking. Finally, I just stretched the leader material and it broke......just like rotten nylon leaders. I thought florocarbon did NOT get rotten. At $15 a leader spool that's expensive. So it looks like $75 of leader material into the garbage....better to find out today at the table than tomorrow on the lake!! Anybody else had this problem??