So I've been using Feather blades lately but realized that although they cut very well it could be a bit more smooth for my face. I find with the Merkurs that I have (34c/HD and 39c/Sledgehammer) to be extremely light handed with Feather blades, or else they aren't so smooth on my sensitive skin and can lead to irritation. The 39c is especially aggressive with the Feathers, and will be a little harsh on my skin if I don't use the lightest pressure and care.
I have an old family Slim Adjustable that I tried a Feather out in recently. And even on a 4 or a 5, I found I could be a lot more liberal with the razor without the risks that I had when using a Feather in a Merkur (especially the 39c, but even the HD). I didn't have to be quite as careful even with a Feather blade in it, and it was a lot friendlier to my skin. I even found that the Slim was more gentle with other blades too as compared to the Merkurs.
I just bought a few more vintage Gillette razors to try and see if all Gillettes are more mild than my Merkurs, noteably with a sharp Feather in it. I like how sharp the Feather is, and I was hoping that if I paired it with a slightly milder razor it would be the perfect combination of sharp and smooth.
So what I have coming to me soon is:
-1964 Gillette Slim Adjustable (I bought another Slim since I don't want to use the heirloom one.)
-1958 Gillette Fat Boy
-1965 Gillette Flare-Tip Super Speed
-1952 Gillette 40s style Super Speed
-1950s Gillette Ball-End Tech
So I think with all those razors I will have a bit of a range from mild (Tech) to aggressive (Merkur 39c). From what I've read, pairing a milder razor like a Tech with a more aggressive razor like a Feather produces great results, and that's what I'm about to find out! I have no experience with these Gillettes vintages (except for a few shaves with the Slim I have now), but from what I've read about them they should be a treat.
I will try to keep up to date and keep track of how each vintage razor feels with a Feather blade in it. I will obviously try other blades in the Gillettes eventually too, but I really want to keep the blade variable constant for now. I have no idea what to expect, but I'm kind of excited!