I know you do like your shell. Carmina is quite flexible and offers lots of color options if you are willing to branch out beyond AE.
I don't know if I should thank or curse you for luring me into shell with those nice shiny 744s. I've since acquired a few more pairs, including walnut shell Dalton's incoming. They should be done soon in a week or two.
Your welcome. And I'm sorry. And know EXACTLY how you feel....
My brown shell Patriots fit snug but pretty much perfectly so I ordered the burgundy also. Much to my surprise they are about a quarter size larger. My right foot is just a bit smaller than my left which is common and when the heel hit the ground they flared badly, and when they closed they would push air out. Great, now a loafer with bowing issues! Several AE SA have said minor bowing like that is caused by lack of foot volume but I already wear superfeet insoles. I purchased a pair of thin odor eaters and using only the right one cut it so it is only about long as the superfeet inserts. The bowing and gush of air went away. Might be worth a try.
If it is major bowing you can measure it by comparing the right shoe against the throat opening in the left. It is too large there is nothing you can do except send them back to QA to have them check it and replace it if it is out of specs.