As I understand it, power tools may generate too much heat in the edge, especially if you’re trying to reprofile, which can ruin the heat treat. Before I bought my KME system, I sent a few knives to Paul at Apostle P knife sharpening and he did a great job. If he can’t reprofile it, I’m sure he can recommend someone who can.
I can’t paste the FB link for some reason but you can google it.