We met him at the Amsterdam meet years ago. The project took years to complete. He refined the design a few times and it was better each time. He made hand carved wooden models each time, and we were shipping back and forth from Golden to Netherlands.And yes, both he and the maker are to be commended. It's difficult to make, so quite expensive, but the other Bushcraft knives we built have also been expensive.
I purchased, personally, some of the "NASA" Bushcraft design ( the Proficient ) because it is so unique, and so effective and will probably never be made again. Special gifts for special people. I'll probably do the same with Tom Zoomer's piece.
sal