Yes, I use it in 12x20. It is a great film and it sure behaves like FP4+. OTOH, I am looking to switch to JandC 400 since I am a little worried that PW will run out of film, might as well start testing other films now. So if you dont mind the uncertainty of using a probable fp4 film that might not be available for you in the future, I say use it, it is a great film.
Of course, JandC400 is forte film, and we all know all the rumors about them...so it seems you are dammed if you do and dammed if you dont.....