Tear out I had such good luck at over the past couple weeks has progressed to where walkways have been filled with sand in preparation for laying new walks. Except for one small portion about a half a block long. The WORST section of walkway, as it is just littered with nails and cinders and what not. The machine goes absolutely crazy in this area. Few people have the patience to work such sections, but given that this will likely be filled with sand in short order, I decided to spend…