Calling KME is the best advice, but here's my $0.02. You'll need to invest in a fair bit of elbow grease to get the beveled edge reground to the sharpeners angle. You can go hard and fast at this stage. Keep working on the course stone until an even bevel is achieved and a burr is raised all along the new edge then flip it over and lightly work the burr off, it should only take a few strokes. Now's the time to slow down and ease up the pressure. The BH should be pretty sharp now and you can move on to the fine stone to do a few lights strokes to finish. Use a marker to darken the edge, it helps to keep track of where you are in the process. This is how I sharpen my Stos's and though they're double bevel, the process is basically the same. I too was surprised how much initial grinding needed to be done. Stick with it, you'll get there!