I'm not sure that I see it as a flaw, odd yes, but not necessarily flawed. I presumed, that given their construction, there is supposed to be very little (if any) movement in the neck, even taking into account changes in temperature/humidity etc. Again my presumption, but would the neck relief be set reasonably low from the manufacturer, but you can still raise the string height if required? I have several graphite necked instruments myself and I can count of the fingers of less than one finger how many times I've had to mess with their respective truss rods. Maybe the answer is Modulus installs truss rods unnecessarily? I don't know. I'd really like to try one though.