Tried one of those. It simply didn't work well enough for my tastes.
Yep...anytime you see an orange glow at the contact point on something like this gadget, you've ruined your knife's edge retaining ability. Sharpening a blade should never involve heat. Slow honing strokes on sharpening stones is the best IMHO.
"The government did not write the constitution to give rights to the people. The people wrote the constitution to limit the government's power."