And watch for hardware when you saw up those suckers. Bolts and other large items are obvious but it's the staples that get you. The large fencing staples. They held copper down ground on at one time so are in a straight line, so if you find one, follow the line to the top.
Urban poles can be a pain in the ass what with all the signs, posters etc. attached over the years. So much so i don't take those at all. The larger transmission line poles are the best but as you would expect are harder to get.