I wouldn't send them back to Leffot. Alden can fix those. I once had a pair of #8 shoes with one lighter than the other. I purchased them that way, at a discount. Alden charged me a small fee to fix them. They turned out perfect. If I had purchased them for full price, I would have demanded that Alden fix them for free, since they are no longer available. Maybe go through Leffot for this resolution, but if you really want them, they can be fixed.