I hate to admit this. But since I've been grinding chains with an electric grinder. When it comes to setting the Rakers I got lazy, . . .
http://www.arboristsite.com/community/threads/depth-gauges-on-a-grinder.200410/
Another question how important is making the teeth the same length. I've heard find the shortest or most damaged tooth, sharpen and set that one then do all the rest the same length . . .if you sharpen each tooth and set the raker off that tooth I don't see why length would matter.
Cutter length affects height and width. Rougher, less efficient cut if not the same.
Philbert