code: @Override
      public Long getMaximumStart() {
          calculator();
          if (simple) {
              return v[1];
          } else {
              Weight maxStart = cn.getMaximumStart();
              return maxStart.isInfinity() ? null : maxStart.value();
          }
      }
docs: /*
  (non-Javadoc)
  
  @see org.virginia.pbhs.parameters.Interval#getMaximumStart()