viku on Instagram: "He finishes the main felling cuts around the joint (face notch on the intended fall direction + back cut). The tree is now almost fully severed but stays perfectly upright and stable because the mortise-and-tenon joint is still locked together.Logger steps back, picks up a long pole or uses the saw bar to gently push the top of the tree. The joint acts like a hinge - he can steer the exact direction and timing of the fall. The tree slowly starts to tip in the precise directio