I'd go with the steel guide rod for both... I replaced the plastic guide rod that was in my 92 with a steel one. You can order your 92 steel guide rods from this guy, David Olhasso...Originally Posted by Ancman
I've ordered Steel Guide Rods and D-Springs from him...for my 92FS and Cougar 8000F. Top notch guy.
As for which better, I personally think that the steel guide rod is better. That plastic guide rod is pretty weak and feels cheap.