Almost three years of research, development and testing have gone into these game-changing polesaws. The goal was no small order: make the best cutting, lightest and stiffest polesaw in the world. The goal we set for ourselves has been met. Compared to the Silky Hayauchi polesaw of the same length, the 21 ft SHERRILLtree Stealth 21.3 Green Polesaw …