Dungen has started doing Arc Paths (which I greatly love), but I was thinking down the road it may be a hassle to remeber how many issues a AP took. So I was thing maybe on the spine of Mag, put a 1/2 inch color band, so you glance at your mag on the self and see how "long" the arc path is. They could stack so if you had 3 paths running could see which them all. Do think it would cost much extra to due. But I have never published anything.
Just an idea,
Jon