So I was thinking about this... I recently got a bike that accepts a 1 inch steerer tube and a carbon fork with a steel un-threaded steer tube to match and I just don't like the way "ahead sets" and bolt on stems look on a C&V bike... SO I was thinking about a combination of the two things

the idea would consist of a two pieces A & B.

A = a replacement stem bolt that would thread (A1) in to a standard (star nut???) "C" nut... only the user would need to push "C" further down the steer tube of the fork
B = a bolt on collar that would essentially pull the rest of the system C & D together.

What i don't know is how it would keep the stem from rotating.. @Drillium Dude ... got any ideas? maybe a third collar that sits of the upper lip of the fork's steer tube that would interface with "A" and stop the stem from swiviling?