Among other things, count your strokes so you can keep the edge centered. Make sure you get a burr on both sides on your coarsest stone. After that, shine up your tapers on successively finer stones. Look at the tapers to be sure that the scratches are getting finer with each stone change. Light and magnification helps. I can usually see a burr (with magnification) before I can feel it. Your knives will last longer, and sharpening will take less time if you sharpen by inspection. The folding DMT "stones" can be rubber banded to the Sharpmaker. Rotate the rig 180 degrees to do the other side. When my tapers are nice and shiny and extend all the way to the working edge, I move the XXfine rods from the 30 degree holes to the 40 degree holes and (using the weight of the knife) knock off that last little burr with a few strokes. It ain't rocket science.