Just go with the Tange Levin

I was looking for a headset for my recent project and was talking to a guy who builds some pretty high end bikes. I was lamenting that I couldn't find something better with a JIS crown race (I could find some 105 headsets but only in 26.4). To my surprise he told me just to go with the tange passage. I upgraded to the Levin (~$20 instead of ~$10) because in all the pictures, it looked like it had a better chrome job with about the same internals. The thing seems pretty smooth and I've got no complaints although a needle bearing would be cool in the long run.