I am not sure, for a short answer. I would think, and my opinion is worth exactly what you paid for it, that it matters. What I have seen in my knives, is this: Let's take for example, that we 30 with an XC, and micro with XF. You don't have an XF edge. You have an XF contact point, but once it makes it into whatever you are cutting, the teeth take over. I feel like this is particularly helpful, when you are dealing with a thicker blade, like my new Manix XL. I know that there are guys that do exactly opposite of me, and polish their back bevel, and coarse their micro. I only know that my edges are working better for me, the further I go along in developing my system, for my knives, and my uses.
Ever clean a redfish? I'll bet you have. A fine edge sucks for them! Too much stuff to make it through. A rough edge, or even serrated will torch em' fast. This is the concept I am working off of. What do you think???