anchor.diff:    clockGroup.selectAll('faces').remove()
   
     minuteHand = d3.svg.arc()
  -                  .outerRadius(sizestep * 2)
  -                  .innerRadius(sizestep * 1 + margin)
  +                  .outerRadius(bigRadius)
  +                  .innerRadius(bigRadius - thickness)
  +                  .cornerRadius(cornerRadius)
                     .startAngle(function(d) {
                       return scaleMins(d.numeric) - handspan
                     })
  
positive.code: 
  
    hourFace = d3.svg.arc()
                 .outerRadius(sizestep * 1)
                 .innerRadius(sizestep * 0 + margin)
                 .startAngle(function(d) {
                   return (pi * 2) + scaleHours(d.numeric) - (handspan + margin / 100)
                 })
  
negative.code:            .attr('id', function(d) {
               return d.unit + '-hands'
             })
             .attr('opacity', 0.7)
  
    clockGroup.selectAll('faces')
              .data(data)
  