I'm not that easy! First you got to send flowers! Then maybe some chocolate. Write me some poetry.

With regular stone wheels you want the wheel rotating *towards* the edge of the blade.That's the default way that the motors are set up. You need to set the blade on the wheel so that sparks are coming off the wheel below the knife. Then you change the angle so that the sparks are coming off the wheel just over the edge of the knife. Doing it that way ensures that you are grinding a correct, flat bevel and that you are also sharpening the edge. Of course that assumes that you already have pretty much the correct bevel on the knife.
With the paper sharpening system you need to approach the wheel with the blade edge down...so that the wheel rotates *off* the edge. (Turning the knife edge to sharpen like you would with a stone wheel, is an invitation to disaster, as the knife will catch on the wheel.)
To my mind, that was a hassle and seemed dangerous. I couldn't see the edge of the knife as well as I liked and the blade always had a force (the spinning wheel) pushing it at me. So I turned the machine around....tried to figure a way to reverse wire the motor but it's a cheapie. Once I got the machine turned around, I could see (and control) the edge better and the force imparted to the knife was always away from me. It's awkward to turn the machine on and I need to remind students that the machine is rotating opposite of what they expect but it's a good system once you get used to it.
Tight Stitches
DWFII--Member HCC