it was a good article , around my way in Pa. we do have tree crane ops. Sit down or stand up , I read on here that stand up operators are suckers , not if they stack logs on the back . I've been doing crane work since 1985 , No movement on a crane is ideal , but not practical. I once worked with a 200t crane picking at 178 from center pin , if his boom moved he shut his crane off an got nasty. Any one on here who never rocked a boom is FOS . Love Crane