I was mediocre at best when it came to sharpening stuff. For years, I shot Eclipse broad heads that came unsharpened out of the box. They were horrible for me to sharpen. I finally switched to Samurai heads which come very sharp out of the box. I was convinced that they were about as good as it could get. But all fixed blade heads need regular touching up to maintain an ethical edge so I bit the bullet and bought this KME kit. I couldn't be happier with it. It's made me realize that even "pre sharpened" heads leave a bit to be desired. This jig will take your edge to a crazy sharp level.
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Coating the bevel with a sharpie is really helpful towards keeping a consistent angle.
And sharpening in good light is important. I prefer direct, bright sunlight because it will show any flaws in the edge. If you can see the slightest "shine" on the edge (the edge, not the bevel) then it's not as sharp as it can be.
I also like to look at the final edge with a high quality magnifying glass.