New Kickstarter update.
I disagree- the primary improvement is that the Caswell design can be opened while maintaining a full grip on the knife and has zero risk of the knife edge contacting the user's hand when closing. Waved karambits can open just as fast, but because the blade swings through the grip area when opening or closing, you cannot fully grip the knife while it is opening or closing, and in the event of lock failure, the blade will close on your fingers. Is that a need you have? Maybe not. Is it more complex than a traditional folding knife? Yes, but it is not more complex than required to meet the mechanical objectives of the designer, and it is still a simple and elegant design.