I'm in Elgin, and the happy owner of both the Sharpmaker and more recently, an Edge Pro "Apex". My own opinion and experience with sharpening is that I like the Sharpmaker angles and it's fantastic for putting on the finished edge, so I re-profiled ALL my knives, from Spydercos to Ka Bar fighting knives, to the "Spyderco" angles with the Edge Pro "Apex", which will safely, neatly, and quickly re-profile an edge, then I put the finished secondary bevel on with the Sharpmaker. The problem is, the factory grind is too blunt usually, and this is where, as I've recently found, the Edge Pro excells for re-profiling. If you try to reprofile an edge on a Sharpmaker,---especially on a larger knife that needs a lot of metal removed, like my Ka Bar did to get down to the 30 degree backbevel angle---you'll spend a LOOOOOONNNG time on the SM. The Edge Pro and a coarse stone take it down pretty quickly, though. Then I work up through the grits to 1000 on the EP for the backbevel, get rid of the wire edge, and go to the 40 degree (included angle) rods on the Sharpmaker for 20 light strokes per side. This got all my knives "scary-sharp".
I can pop hairs above the skin with all my knives now----I'm pretty happy. Send me a PM if you have questions or live nearby. I'll try to help if I can.