I recently posted an article discussing the “evolution” of Parker razors. I mentioned the first Parker razor I bought in 2006, the 90R. As I was working on the post Howie Woda suggested I compare my 90R with a current version as an example of how the razor has progressed, and he was kind enough to send me one. There have definitely been some changes: the new version is noticeably heavier ( 2.7 oz. vs. 2.1 oz. ), a fraction longer (4.625 inches vs. 4.5 inches total) and the TTO mechanism has obviously been beefed up (Howie says the metal is three times thicker in the new version).
Here is a close-up of the old version (left) and the new version (right):
The difference between the two for a shave? The heavier head gave the newer model a balance that worked better for me. The newer head also seemed to give me a more consistent cut. The aggressiveness was about the same between the two, though the newer model might be subtly less aggressive…hard for me to say. Both give good shaves but I would have to give the nod to the newer model.