I`ve seen lots of these look a likes on the slopes in Japan. Built for the Japanese market, they`re in a similar range to the small Dupraz.
http://www.gentem.co.jp/gentem/gentemstick/lineup.pdf
They`re fairly popular and everyone I`ve seen and/or spoken to LOVES them, not to mention the riders all seem to ride at a higher level than the majority of the skidders who are all decked out in Burton everything..
The only down side of the Gentem sticks would be that they cost twice as much as a Dupraz.....
...... Don`t really know, but from what I see of that style of board at work on the snow, they look like they work better than a standard snowboard shape.