Just adding to the pile.
Yes the sharpmaker is the way to go.
I managed to pick up couple different systems over my time, and still fall back to freehand, and on the sharpmakers sticks i do this.
One thought though, on the Slidesharp i would not use on my lawnmower blade, the ceramic rods that come with are long(Nice), however they have the finish of a debarked tree.
Very poor quality, very inconsistent abrasive quality from one cm to the next on either rod, really a poor investment imho, it will tear chunks out blade edges.They really dropped the ball on this setup, on top of this, they are so out of round they will not roll on glass, a trick from pushrods on ole motors.
The sharpmakers rods are perfectly consistent thier entire lengths, atleast mine are. They feel like silk to me and i really love the quality of them.
There is no comparison between these and the other the slidsharp carp.
Fanboy out.
WR