Skopia
It really is a personal choice thing... I really do prefer the FPJ vs the NFPJ, but just as many other may chose it the other way.
For myself in cold weather the FPJ is much easier to handle. Another down-fall of the NFPJ is everyonece in awhile you can stick a primer and it is almost impossible to get the bolt back.
I would say that the NFPJ is the cleaner of the two.
I also shoot T7 and normally it is believed to shoot the cooler 209 to help reduce the 'crud ring' formed in some guns by T7.