I use a Merkur safety razor, but most often I use a commercial shaving cream like Gillette as I don’t have the time it takes to break out my brush etc.
I look at it as I get the benefit of cheap, close shaves, without the longer process of using my brush to lather up. Maybe if I had a nice badger brush I’d feel differently.
As for the blades - Astra are a good general purpose blade I like. Feathers, as someone else mentioned, are wicked sharp, and require extra care.
Moving from cartridge expect to take some time to get the technique down. You can’t go as fast.
Enjoy!
The article is not conclusive. There are always going to be outliers in a case by case basis.
From the same article:
“Still, after decades of treating, showing, and judging countless breeds, AKC’s chief veterinary officer, Jerry Klein, disputes the study’s conclusions. “I think most dogs conform to the personality standard of their breed,” he says.”