We use CAD software so we can from scratch create what the customer wants.  But sometimes you know you don't have to get that in depth and that's what we love about 3C.  Comes into play with Stuller Showcase as well but 3C is simple.  You have the ring that's already there, it's designed and of course they're always going to want a different stone shape, they're going to want a different size, they may want diamonds in a different area.  And that's where 3C can help us without having to start from the drawing table like we would with our CAD software.