Seriously though, I work the biggest trees in my area. Not the biggest in the world, but a 4 foot diameter oak is big wood. Most of the trees I get are over at least one roof, often slate or ceramic tile, house drops, pole to pole lines, fences, other trees and landscaping that the customer doesn't want to have damaged... the bottom 1/2 to 1/3 is never the hard part around here. Its a pain in the ass sometimes because its BORING negative rigging big heavy logs and moving the block and rigging down over and over. If I can drop the logs without rigging, oh happy times!!! But a 24 inch dia lead that crosses the house drops then both sides of the roof with no bucket or crane access, that is a challenge. Especially when the tree is only 70 foot tall with no good center high point to rope into.