Edwin Jagger DE89 is it:

After multiple epic shaves and the fact that I've now went past 4 shaves on a single Perma-sharp blade, I have decided to retire all other DE safety razors and keep using my Edwin Jagger DE 89. It's now my "go to" razor. The double OC was great. However there's 3 problems with it. The first is that it now has to be "replated" because there's a spot where you unscrew the handle that has raw metal showing which is never a good sign. The second problem is that it causes me severe neck irritation because I have to go over that area too many times to get a clean shave. The 3rd problem is that it's a blade eater and I have yet to find any blade to go past 3 multi pass shaves with it which kindly defeats the main reason why I got into wet shaving and that's costs. I also have to stretch the skin now which was expected due to my age along with a tough beard to go with it. I was told that my late grandfather on my dad's side could dull a pair of hair clippers in one sitting and my dad says that the blades he currently uses go dull after just one or two uses.