teknical,
Read the instructions

You're supposed to move the blade so the portion of the edge being sharpened maintains a consistent distance from the blade stop.
I was doing the same thing 'til I got a manual from EdgePro. Bought my Apex used, and it didn't come with one. I still keep the knife steady and let the angle steepen toward the tip sometimes, especially when I'm putting on a thin edge, but want the edge a little stronger toward the tip for scraping stuff, on a chopper that might be hitting the ground or having accidental contacts with hard objects, or whatever other reason.
My .02:
On a smaller blade, I do not tape the blade or the table, and just put a thin piece of toilet paper under the blade. Every few strokes, I rinse the stone, and wipe off the table. I would tape larger blades, since you scoot them along the table as you go, if I cared about scratches on them (which I usually don't).
You can put a paper towel or two underneath the EdgePro, and all you'll have to clean up is some moisture. I always wind up using it on the bathroom counter next to the sink so cleaning up just takes a few seconds.
I lap the stones on flat concrete, or a concrete block. Only takes a few seconds, and will actually prolong the useful life of your coarse stone, since it keeps it from developing hollows. Reversing the stone every time you rinse it also helps, but the last inch on each end has to be lapped down to match the rest of the stone every so often.
Good idea about the wet/dry strip. Might try that. I don't mirror polish many edges, but do use the tapes alot for polishing back bevels, before finishing a steeper, coarser edge.
Even after alot of practice, and many knives rebeveled, I'm still getting better and better results with the EdgePro. At first the results didn't impress me as much as expected. Apparently the process was suffering from an operator deficiency
