Recently, some comments were made suggesting that this sidewalk paster by Chod was not working out.
As you can see, these current pics show that Chod's piece is still riding strong. Like an animal. There is a minor crack at a spot where there is a hole in the cement underneath, but for all intents and purposes, this method of sidewalk pasting seems to have worked successfully.
As far as we know, this 36x24 paster is the largest sidewalk paster to be successfully placed for longer than a few weeks.