Will at Leather Soul recommended going with my Barrie size which seems to be right on for these. I was glad to see Uncle Mac recommended the same earlier in the thread.
I have tried these on in shell and felt that an 11D was a bit snug across the top but the 11.5 was a bit loose in the heel. Surpisingly, the 11D in these feels great with no tightness across the vamp.
I have never needed a narrow shoe but may try an 11.5 A/C in the shell to see if the extra length helps with the vamp tightness and the narrow width helps with the heel. I know that this was a preorder so I am not sure if they have any left. What is your size?