Triple hinge sizwheel fail

[kevin bingham]

I missed the reason for the vertical cuts. what is going on with those? what is the reason for those ever? I have never seen or heard of that practice. is this discussed in another thread somewhere?

 

[Buddy]

I think it started with post #6207 in the tree felling videos

 

[SeanKroll]

Makes three independent hinges , only on the tension side, with room to flex.