If you inspect the two cCells from the top, you will see that the Kanthal center hole is larger than the Ni200.Funny you should mention that! I just now replaced the kanthal head with the nickle and the first thing I did was play with the airflow. I have it adjusted to about halfway right now and it is definitely tighter than it was all the way open. The draw is tighter with this coil than it was with the kanthal, too.
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