I have a small tree felling job to do for a lady. All the trees are low risk in terms of damaging structures or property. There is one wind damaged poplar, about 18" dial. with a vertical crack about 10'-12' long from the ground up. My question, is there a technique for cutting this tree? I'm concerned about a barber chair. I am thinking about wrapping a chain around the trunk above my cut and treating like any other tree. Does that seem reasonable?