I have an older Braun shaver. Approximately every 2 years I switch blade block and a shaving blade. So far, every time with the result that the new blade block with the new shear blade brought a better shaving result, which indeed is obvious. This time, however, it is exactly the opposite: the new products I bought at Amazon, brings a worse shaving and also causes skin irritation compared to the old (about 2 years old) article. After I used the new Article 3 weeks, I then reattached the old cutter block with the old shearing blade (I had kept thankfully): I have no more skin irritation and the shaving result is significantly better / smoother. I now suspect that Braun wants owners of older shavers to buy a new motivate by decreases the quality of the spare parts; but if my next razor will truly be a Braun shaver, I do not know after this disappointment; I think probably not, I feel kidding.