I have an Emerson CQC7 that I am looking to purchase a sharpener for. I am a beginner and need some help. What would be a good sharpener that is worthy of the Emerson? What angle is the grind? How do you sharpen the serrations? What is the best method to keep the tanto lines crisp. I saw the free hand method on the Emerson site, but I would rather have a sharpener with some sort of guide to try and keep the factory angle and aid with my inexperience. Thanks.