I switched from FBV to zChannel a few weeks ago. The guys at TSR recommended so I figured what the hell. I started off with 5/8th's ROH with a medium channel. I noticed way more bite than my usual FBV, more glide too. I still had more than enough grip and glide even when the blades 'felt' dull to the touch. Hoping to reduce the amount of bite, I went with a 3/4th's ROH and a smaller channel. I am hoping this will reduce the amount of bite, honestly, I didn't notice a difference. For me, first time out on a fresh zChannel is borderline too much bite. I do really like the glide and it doesn't seem to deteriorate over the life of the sharpening. But there is the cost and I do wonder what impact if any it has on the life of ones steel. I might be sold on it...I don't know. I haven't really exhausted all the options yet and I've only been on that second sharpening once.