Thanks for the input guys.
Turned out he had QT w/o the redraw. My decision also was pretty easy since I actually had the nut flush. It just really blew me away because normally I'd want to fold middle set there so I was curious to see how most people would think that hand would hold against an unknown's range there.
Obviously I can't count on someone spazzing out that much with no history with top two that often but it got me thinking anyway.