Wondering this same thing the other day. If a damascus blade is, say 1095 and 15n20, you have half .95% carbon, and half .75% carbon. So, if in grinding the bevel and then secondary gives you an edge with some areas .95 and some .75.......would the edge be "up to par" with a mono 1095? This is probably a little subjective, I don't know. Good question that I'm really looking forward to the answers given by those who know what they're talking about, unlike myself. Edit....I say "half 1095 and half 15n20". I realize that damascus isn't necessarilly "half and half".