You are fools, reverse camber isn't something for everyone, it rides totally different than anything else, and it definitely not a good idea for urban, but if you wanna try it, be my guest. Another problem, however...is that the skis used in that thread on TGR were the Atomic Powder Plus, which has a sheet of metal in it that allows it to keep a shape when bent. Most park skis don't have any such thing, so you won't even be able to create reverse camber in them.