I'm in the beginner stage of learning how to use synthetic stones to sharpen my knives. I've had them for about 3 years now but only had a need to use them about 5-6 times. The resulting edges have been acceptable for me, but I'm quite sure I'm still leaving something on the table with what the steel can handle.
What technique(s) do you use to test your edge after you sharpen it? I don't like to use food unless I'm then going to eat it, so I can't always choose that as my time to sharpen doesn't always co-incide.
I have always used a sheet of paper, like this:
I can usually feel the way the blade slices through the page pretty well, and look at the quality of the cuts on the pieces.
What is your approach, and why?