I had a Tojiro DP and it is very hard steel. I dont think you will have a problem with the sharpmaker if you do not let the knife get to dull. I think spyderco is a ceramic kit (correct me if wrong) and I used a ceramic dexter tri- hone at the time on the Tojiro with frequent touch ups so as to not let the knife get dull because the tri-hone cuts pretty slow. I think you will be just fine with the spyderco. Doug...........
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