Is anyone doing a large area of consentrated sidewalks,possibly for a government agency? I have several questions. A) What equipment is being used? B) How are the charges being figured? C) How were they being done before you started? I already do a large number of sidewalks but am interested in hearing how others are figuring this aspect of their business.I am thinking about Holder or a Trackless,or maybe even a Suzuki Samuri with a blade,anybody have any experiance with any of these.