I tried the highly recommended Astra SP and I have never been so bloody.
I showered, did my normal prep, and used my mildest razor, a Tech.
Nasty business. Our dinner companions even commented and asked what I did to my face.
My go-to blade had been Iridiums which I have been trading for Feathers since I get more shaves per blade with Feathers.
Another good blade for me are the 7 O'Clock blacks.
I was just looking to try and find a less expensive alternative to those 3.
I tested the Medical Personna and they are good, so I will put them on a short list for more testing.
Next to try are the Kai and I expect great things from them.