With Dainite soles, when you can't see a nail pattern on the heels, use the color of the insole stamp to distinguish the maker: gold for AS and, IIRC, silver for C&J.
Unfortunately, I'm currently tapped out, trying to save money for furniture, so I won't be buying. Of course, I already own 2 pairs of brown winter boots and a pair of pebble grain bluchers, all with Dainite soles, for winter wear. So I'm pretty well set.