Quote Originally Posted by EAGLESKADU View Post
Maybe a stupid question but I've found that I can do the hht with my hair bit my wife has very fine hair and I can't do it with hers, are the hairs your using fine or coarse? Just a thought. I know its not worth much,but a try
And that's pretty much what Glen means by calibration. Not all hairs will pass on different blades. On some of my razors I can do it ( I have fine hair ) and others won't. All shave equally well, it comes down to the shave test.