As always, David Penn delivers! I've used several switching boxes and this is by far the most
versatile, easy to use and deceptive. David does a nice job with the instructional DVD and the
interview with Peter Turner got my mind racing! The potential alone for billet work and predictions
makes this a must have. My ONLY criticism is that the "extra inserts" David provides so that you can
customize the object in the box could be better quality and is prone to scratches. The material
works just fine, but is a bit fragile. The good news is there's a superior material available at
better craft stores in the US. I've upgraded my box for $3 and now it is incredible!