I have been diligently workign on my honing abilities. I am not confident about any of my "feel" test such as the thumb test so i use hair to test the blade, usually some form of the HHT. I can get to the point on the 4k where I can hold a hair in my hand and come in wiht the razor and cut it if i have a little movement (speed) with the razor. If i take that blade to the 8k i then lose that ability and the razor doesnt want to cut the hair. I am not sure what is going on. IS there something about the texture of the 8k that has me honing at a different angle than the 4k? is the relatively rougher edge of the 4k honed blade better able to grab the hair than the 8k honed blade?