Recently bought a Boker Kwaiken for EDC. A nice little knife. Heavy but that's partly because I got copper scales.

Are you referring to the KME sharpener? If so, I recently bought they system. May have been a mistake. It's great for pocket knives if that's all you sharpen. But, so far, it's very disappointing for large kitchen knives with Japanese steel and acute edges (works fine on soft German steel but I've gotten rid of most of those). I have an EdgePro Apex system with chosera stones I was hoping to sell off; more of a hassle to use. However, it's far better on the bigger blades and smaller angles. Will keep playing with the KME but may end up selling it instead (too late to return, I've done several mods). There are pros and cons to both systems. I don't have the patience to learn hand sharpening.