I recently had both my spyderco knives sent back for sharpening and I must say I am less that impressed with the edge they came back with. Don't get me wrong they are sharp but they lack that bite that I have grown used to feeling from my Microtech and benchmade (mainly in the serrated areas) Is there a reason these knives don't have an equivlant edge? Is it in the geometry/design of the blade? One is a few year old Endura and the other is the 440V cpm millitary knife. What do you all think? I can live with it the way it is but I expected more.