I'll be trying a Russian blade in the Blackbird today. I'm not a huge fan of aggressive razors, and the BB pushes against the upper limit of my comfort level. Yesterday's shave was with a Personna Blue, which I probably should have passed on, at least initially. I know better than to pair an unfamiliar blade with an unfamiliar razor on it's first go. Since the Blue felt comparable to a Feather, I'm going to use a Voskhod to tone the razor down a little. Voskhod blades have always felt smooth, rather than sharp, to me. They tend to shine in aggressive razors, and perform so-so in milder razors. Okay, so the Voskhod did make a difference, and this shave, while a bit on the rushed side, was more comfortable than yesterday's shave. I'm still getting used to the Blackbird's strange... ...don't really know what to call it. Something about the geometry of the head design causes it to have a skin stretching effect. It pulls the skin tight as you shave, leaving one with an exceptionally close shave. Both times it rather felt like a layer of epidermis being peeled off, but zero sting and zero irritation to show for it. Not even a touch of redness. Quite a remarkable razor. Voskhod is definitely a good blade to pair with it.