How can I build an adjustable mold using the pneumatic press that this site shows?

As for bamboo, I was looking at the flooring planks from http://www.teragren.com/ . They have vertically laminated ones http://www.teragren.com/tera_flooring/un_signature.asp . Davide has had good luck using high quality plywood for cores, so maybe these would work well as is for a core. I was thin...

I need to know what type of core to use. I was thinking of copying Kingswood for core stiffness (maybe a little flexier) but bamboo is tought to get. What good materials would get a little stiffness in a ski that are cheapish and easy to find? If you know where to find bamboo that would be good for ...