Great post! I just hacked right under my eye the other day as I pulled through a stroke too long like you did to your chin. I also do the same thing finishing with a Mach 3 and I wonder if that causes a bit of a problem... You use such longer strokes and finishes with newer razors that I wonder if that promotes bad habits with straight razors where the strokes are so much more measured and steadily stopped at the end. ??