Right. If I wasn't clear before, let me acknowledge upfront: cracks have already begun to form. The leather certainly hasn't split all the way through, though. What I want to know is how do I stabilize them so the cracks don't get worse. Especially once I apply some polish, I'm reasonably comfortable I can disguise the cracking to the point that they will still be useful for the application I have in mind (primarily inclement weather boots when I don't want to wear my C&J shells).
It may be that some folks wouldn't invest the time. But I would like to, if for nothing more than the learning that would come with it. So I would appreciate any advice (that isn't "don't waste your time").
Thanks again in advance.