^ Yeah, sorry, just to back up -- what is dark cognac? Is it just cognac shell with antiquing, or a totally separate shade? I haven't heard of it either. Sounds intriguing though.
The flat welt is just really versatile. Carmina's lasts, in the grand scheme of shoes, are fairly sleek, and especially with shell I think the flat welt is the way to go.
+1 for York sole.