Very attractive looking group of pens, and my favorite --The Exec. I'd be hard pressed to pick the one I like the best, but I'm leaning toward the blue one.
Question on the buffalo horn. I've never turned that material. Do you get color variations as you turn it down, or does it all stay primarily black? Looks like a little brown hue starting to show through near the nib end. Not sure about the lighter shades I see. I figured that was just light reflecting off the other pens.