VG 10 is a pita to sharpen and carbon is not. That is all.
I would love to try and sharpen VG-10. I have never had any exposure to it. All I have ever worked with is CPM S30V and S35VN so if you would like me to take a try at it just send it to me and I'll do my best with it and send it back. Please consider my propostion as a free sharpening service to you and a learning expereince for me.