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The problem lies with the hook manufacturer themselves. Hooks nowdays arent built here anymore and getting a properly tempered hook at the sizes we use is near impossible. Mustad is my choice for jig hooks not that I like them its just because they are the only company that makes a small jig hook in a size 12 and 10. When I go smaller I get I get my hooks from Orvis shops again they dont manufacture hooks but they do hold up better than some. Where they come from is beyond me. The best solution to this is use hemostats to remove the hooks from fish. This method will keep the hook from breaking a little while longer. Also dont leave any "Meat" on the hook to dry while in storage. I too have old jigs from around 25 years ago that are still fishable and plenty of new ones that are junk from busted hooks.
dang, you guys are hard on your jigs. don't think I ever broke more than 1 ice jig