Since the Pocket Rocket has drop bars, go for it if the fit is right.
My biggest hesitation with a folding bike would be that most have flat bars, and I don't like distances that long on flat bars.
Your bike *might* cost you a few minutes in the end on your finish, over the course of hours, and 100 miles. Do those minutes matter that much to you? Until recently, my fastest century was on my steel Ritchey Breakaway Cross, which isn't a folder, but is my travel bike, and is less optimized for speed than my CAAD9. I only recently broke that personal record on my CAAD9, but not by much.
__________________
Good night...and good luck