I've never broke a sickle on salmon or steelhead, use the heavier wire ones and have never bent one out let alone broke one. I just lost more fish on sickle JIG hooks. Sickle octopus was another story. But I may have a remedy for that, bead and pin jigs with a trailer tied on instead of using sickle jig hooks. Salmon and steelhead run hard and shake their heads like a wet dog shaking. Same with trout, for some reason almost every single trout I hooked on sickle jigs shook the hook in a jump or head shake close to the dock.
They are good hooks, like I said, I can't say anything about using them crappie or other pan fish, just what I have experience with catching fish. not for lack of trying, 120 hours on a supposed awesome crappie lake last year and didn't hook a single crappie or gill or perch on a jig. Trout yes, but lost them on anything but a round bend jig hook.
I love taking my kids fishing, now if I could just manage to fish at the same time.