Spring Spear Trap ~ Lethal ~ Primitive ~ Survival

Caution!!!
Please be safe and take care if you build, practice or use this trap. Its extremely dangerous.
Demonstrating how to build my version of a spring spear trap.
Iv made a few changes and what I think are improvements to the original trap.
In my demo, I didn't give much information on the spring. And the spring is the key element to any spring trap.
Hear I used Hazel. It would probably pierce flesh, but id prefer to use a Maple or Ash sapling, or even better a Yew branch (none were in this small woodland)
If I were setting this for real, even with the brutality of this trap, id want to kill the Animal as quickly & humanly as possible. And that's worth selecting a good spring!!

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Just key words...
Tracking, Trap, Trapping, Trapped, Primitive, Hunting, Small - Medium - Large Game, Animal, Survival, Bushcraft, Woodsman, Self sufficiency.