Pretty sure that the 25% off will not apply to shell cordovan, at least that's what the SA told me last weekend. The only thing that applies to shell is the 15% you get if you open a new line of credit.
I recall in previous years they would simply remove the shell shoes from the online site during the FF sale
Add them to your cart before the sale starts, should get you the 25% off
It happens when the length is a bit longer than it should be, looks fine