Dupont is pretty XC and you can get away with just about anything there. Most trails are mostly clay-based, with some sand/decomposed granite. There are some rockier trails out there, too, but like I said, you can get away with just about anything there. Bent Creek is similar, but even less technical for the most part.
Pisgah proper is wetter and rockier and therefore having bigger tread and grippier rubber is beneficial there.
Pisgah proper is wetter and rockier and therefore having bigger tread and grippier rubber is beneficial there.