That reminds me of one I often walk past: Mast is about sixteen feet long with six feet of it above the edge of the roof. They needed two pieces of rigid, but instead of putting the six foot piece on the bottom going into the meter can, they put the six foot piece on the top and anchored the drop to it. Everything is nice and secure right up to the coupling where the mast makes a 20 degree bend because of all the stress on it.
-John
