Going to purchase the SDS100, have a BCD396XT want to program SDS100 for Morris County, NJ and Essex County, NJ. Familiar with programming with the BCD396XT within FreeScan. I know the SDS100 uses the Sentinal software which I downloaded to view, Question is it worth it to have the SDS100 preprogrammed for the two county's for the extra $75 or not needed where can just select from the software? If I need to have preprogrammed whats best site to buy scannmaster or Bearcat Warehourse?