I catch more fish using them on soft water then hard water. Pretty cool how you can hear them 6 feet under the boat when you rip them. The pike dig them as well so you might get ripped off if you catch my drift.
If your fishing pikey waters, you might try a 20# floro leader, ‘eyes will still eat them, but the pike generally don’t bite through unless you let the leader become chaffed and don’t do anything about it. Will it still happen occasionally, yep, but not very often. If they (eyes) get finicky, go to 10#, but I rarely get really outfished with the 20.
Mark