Paste wax and Saphir reno/VSC serve very different purposes. Paste wax once or twice per year is certainly appropriate to try and maintain color and clean up scuffs and scars. Reno and VSC are meant to moisturize and clean; also good a couple of times per year depending on how often you wear your shell cordovans.
Interesting. Hopefully the fix will be that simple. One last question for you guys: do you have recommendations for cobblers in NYC that you would trust to take a look at these and potentially try to restore them? If not I'd send to Alden, but I'd prefer to avoid the multi-month turnaround time if at all possible.