I understand Aveca's question, or at least I think I do. I don't always know what they mean in the SOP either. For instance, what does "moderately long" really mean? Proportions would be helpful. We rely heavily on the visual whether we realize it or not. The eye sees the proportions that make "moderately long" make sense. I read some fascinating references to shape on another breed where they used a rectangle overlaid on the bird's drawing to illustrate the proper proportion of that breed's body and shape.
In this electronic world, it's not as if we can take a pencil to the screen and draw the ideal line on the picture of an almost perfect one and say "There! That's what I mean." As the past couple of pages illustrate, language can be inexact. What is clear to me isn't always clear to others and vice versa.
I, for one, am unsure what the comb following the head means. I think it means that the base of the comb should follow a line that the head would make if there were no comb present, but as I said, I'm unsure.
I'm also guessing the reason for all requests for a bird with the right outline and look IN BLACK is because an artist can't just take a buff bird and color it black. A child with a box of crayons can but anyone wanting to create quality artwork can't. The play of the light on the feathers makes it so that all the artist can really do is stretch this part a bit or take that line down some. Or do what I did, and make only a profile for my egg carton logo. And mine isn't perfect SOP but the outline of my favorite hen lol.