Been lurking for some time; felt I had to join as I have learned so much from everyone. My Dalton's (regular calf) just shipped today. But what happened a couple of days ago is I was surprised that AE had the Dalton in walnut shell in my size! So I impetuously ordered a pair. I will therefore have both pairs in a few days to compare (and realistically, one pair will have to go back as it makes no sense to keep both). Based on what I've read, it's probably going to be a no-brainer as to which to keep. They will be my first shells.
But my question is --- other than the upper being shell cordovan (and I think I've read the soles are Reidenbach?, whatever that means), what are the other differences between the calf and the shells? Anything else?