My latest trial from the sampler pack was Shark Super Stainless Razor Blades. I think there are several varieties of Shark blades - these were the ones in the yellow box and wrapper.
They do the job and do a reasonable job of it. I found that the second and third shaves are the best, for some reason. But I hadn't found the shave to be as smooth as some of my favorite blades; the usual problem areas seemed to be even more problematic, and my neck was irritated more than with other blades.
I'm going to give these ones a down vote. There are quite a few people out there who will swear by them, but not this guy... so it's off to the next blade.