I heard a lot of people wear the same size Daltons as the 65 last.

I wear size 11D in my Park Avenues and they fit me well. I ordered a pair of Daltons seconds and they are too small for me, my big toe is squeezed when I walk. I put them next to my Park Avenues and the Daltons are definitely shorter (lengthwise).

Is this normal? Do I need to size up on the Daltons or were these labeled the wrong size (which hopefully would get me out of paying the restocking fee to exchange them)?