My boyfriend has a straight razor that he loves, but he never uses it because he says it isn't sharp enough, so I wanted to get him a hone for Christmas (he has a strop). Problem is, I have no idea what kind of hone to get him. I've done some research, but I'm still not sure. I think it's an old razor that hasn't been sharpened for quite some time, but I don't know for sure because I don't want to ask him for fear of giving away the surprise of the gift. What might be a good beginner hone to get him?