Okay, I currently have three razors in my rotation. A Duble Duck Satin Edge, A Boker Red Injun #101, and a Red Imp #133. Now I have noticed that the Red Imp is just not as smooth as the other two. It still shaves close, with no irritation, but it feels like it is pulling more. Does it just need to be sharper or is there that much potential difference in razors?