Stainless steel open-eye Siwash hooks are notorious for breaking at the eye.
It happens when you crimp them......and you won' t see it with the naked eye. It's usually a microscopic hairline crack.
I have had spoons where I decided to change the hook much later after putting an SS Siwash on.
Now these hooks were NEVER even in water of any kind. They were spoons that later on I decided I wanted a lighter hook.
So I'd take the pliers and open up the eye to get them off the ring.
They fell apart in my hands with almost no leverage pressure............and always right on the eye bend.
I knew about crimping them too fast when I put them on.....and how one is supposed to use a singular one-movement steady crimp.
Didn't make any difference.
I stopped using stainless Siwash ages ago.
I've replaced old dulled out/filed out SS Siwash hooks on spoons........ones that had seen actual use.
They looked good......but when I replaced the hook they just fell apart easily on the eyelet as usual.
I'm sort of glad I didn't get fish on those because they would have snapped instantly when there was a fish on....which would have been a big disappointment.
Like I said...you can't tell by looking at the hook eye...they will look perfect even though they're cracked.
In my opinion they are often too heavy for a particular application anyway........they are the heaviest weight of hooks size for size. I rarely need hooks that heavy.
If you need a heavy hook ...great...but their are lighter options that work better.
The hooks below are all I ever use.......they are Mustad..(can't remember the number off the top of my head).
Never had one break at the eye. Never had one straighten out with a fish on. They come stock on TKO spoons.
Yes...they will rust a bit on exposed metal if you don't wash 'em off after fishing....but it's no big deal.
But they are lighter than stainless......so you can use a bigger hook without worrying about the weight messing up the spoon action.
You can get them up to 7/0.