As a gear freak and a knives "amateur", I just had to buy different sharpening systems.
The only one I really use is a flat fine stone (from someplace in Belgium), on which I do my best to restore my knives edge.

I also bought, a year or two ago, a Lansky sharpening system : I tried it on some knives, was not satisfied with the sharpening angle, forget it in a corner.

Cleaning shelves at home, I get it out again today and tried it on Doug's RSK : it should work for that knife ! But I don't want to damage it....
Question : what angle would you recommend to sharpen Doug's knife ??
20? ?

TIA
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(edited ...)
And anyway, how do you know what angle you have with a Lansky sharpener ?
Even if you keep the same reference hole to slide your stone, I guess it varies with the blade width .......
<img src="/images/graemlins/confused.gif" alt="" /> <img src="/images/graemlins/confused.gif" alt="" />