Hmm. Never measured it before. I had decided long ago to leave ample clearance for fumbly fingers about the nock. Saves on a tiny bit of noise and distraction, and wear and tear on the feather. Maybe even keeps a finger from nudging it on release, I dunno. Just measured it, and it is an even inch between the throat of the nock and the base of the fletch. I had just eyeballed it before, and marked my fletch clamp to keep it consistant.
I, too, have the bad habit of using the fletch as part of feeling for full draw. I like to feel the rear corner of the shield at the corner of my mouth. Not very scientific, especially when switching from low to high shields or (shudder!! :eek: ) ...PARABOLICS!!!!
Killdeer