I am going to presume you are working on a 1K hone. You don't have far to go by the sounds of it, it is at the point where I feel I am getting close that I start to really go light on the pressure. It will take more strokes to get the last of it done but it will also really lighten up on the depth of the stria and will make for an easier finish and be less prone to chipping, which can be an issue with hard blades. The other time that I sometimes see a white line on the apex edge of the bevel at finishing which for me means I have gone too far and the edge is about to start to fall apart, or at best will shave for a while but break down rather quickly. You are still setting the bevel though right?