Keep in mind @nthony, that "radius" is determined by the measurement of the curvature of the fretboard, and does not include the shape of the back of the neck. The larger the radius measurement, the flatter the fretboard. 9" radius is more curved than a 12" radius, which is flatter.

Some manufacturers use letters like "D shape," "C shape", "U shape", and so on because the shape of the letter roughly approximates the shape of the back of the neck.

I'm with Blooz. Send Michael Kelly an email, and they could give you the specs as to fretboard radius, neck width and thickness, as well as neck shape.