I have a Lansky Deluxe Diamond, and even though I am still learning (like 6 knives sharpened so far), I can get pretty scary results. Cut free hanging newsprint and slash cut free hanging 2ply toilet paper. Still got a lot to learn about strops and making one to bring my sharpness to the next level. Then, its learning how to do it on the belt grinder I'm getting or paper wheels.