Gentlemen,
I had a chance to fondle one of of these Dartmoors at this past SHOT show. Initial impression, fairly heavy for its size. The blade tang assembly is one piece, with a cut-out inside the tang to retain a small plastic tube - over this tang/capsule assembly slips on a thermoplastic rubber handle - retained by a thread screw cap. It does have a certain Hollywood CDI factor... I was really more interested in the brunette behind the counter display than I was in the blade
the sheath was made of a similar material as the handle with plastic reinforcement.
I tend to be biased against most hollow handled survival knives as they are typically two pieces mechanical joined, which leaves open to the opportunity for failure. This desing is not a two piece, however I would not choose it.
Overall impression - interesting design, too ungainly for daily use, there are better choices - Striders and Chris Reeve come to mind.
Or if you are really hardcore, theres the Pilots survival knife :-)
EGG