After reading this thread, I bought a PH3387A with the groceries at Wally's, cut it open, and saw no glaring defects -- it was rather unremarkable, really.
I still don't care for the "engineered media" end caps or the thin can, but that's just personal preference.
I found a cache of AC Delco pre-Ecore PF47's and I'm in the process of draining the inventory at that location, as my budget permits.