Armand, I have had failures on a very similar design that incorporated the through wire setup like yours. The breaking strength is not the only factor to consider. The reason I mentioned the heavy mono crimping, is due to the stretch factor and secondary back up should your through wire fail from the body breaking. Since I started crimping, on 2 seperate occasions the body broke, along with the through wire, but the mono prevented a total loss and got the fish in the boat(one was a marlin, the other a bluefin) In both instances, the bird was struck first either by the same fish(marlin), or another(pack of bluefin in the spread).
The through wire breaking strength on the ones I use is far superior to that of the mono which I now crimp on myself to the style like yours. The ones I use have metal wings, and are very good at raising fish. The design is almost identical to yours....
The forces at play during a strike are very much different than once the fish is hooked and running away with the lure( basically static pressure as opposed to violent, sudden pressure). It is a very inexpensive way to alleviate those fisherman like me and many others who fish with their eyes first, IMHO. The crimps and line will add negligible cost. Simply crimp in the mono to the swivel, run it down the back of the bird, and crimp it again to the swivel where the lure itself attaches.
Just a suggestion. |