Earlier today I took both my Gold Dollar 208 and Gold Monkey Jinhou razors, and I used my 600 grit UltraSharp 2 diamond plate and I muted the points on both the heel and toe of both razors. It took roughly about 5 minutes to do and it did scratch them up pretty good. But that's okay because I plan on putting more effort into them when I get a Dremel:
They will be getting some light grinding and sanding to remove the scratches and then to help clean the razors up a little more, I'll be doing some polishing as well.