I use a Lansky 5 stone diamond set for most of my sharpening and the Sharpmaker just to touch up an already sharp edge. this combo has served me well. when I got the Spyderco system, probably 90% of my knives had been sharpened on the Lansky using the 20 deg. slot. When I touch up on the SM, I've only used the 40 deg. slots and I've been very please with the results, but unless I'm missing something this is hitting the same metal on both devices. If I ever have to reprofile and edge due to not liking the factory grind or severe dulling is there a better option than the 20 deg. slot on the Lansky to go with more of a "micro bevel" on the SM?