I know for high end hair scissors they sell specialized machines and jigs. Like you all, for me, that has always been a voodoo art best left to a pro so I've never really found good info on that either.
I remembered that Dean O doesn't post on YouTube anymore but he made some good videos on...
I do not haunt Blade Forums anymore but, if you want something that specific you might try registering and posting a thread in the Maint, Tinkering, Embellishment section. Benjamin from Baryonx Knives is likely to help. He actually designed and sells his own sheers. My advice is to not stary...
You can strop on most anything. From newspaper to cardboard to paint stirring sticks. You can try to drip your stone slurry onto whatever you choose to use. That said, a bar of Chromium Oxide whish is essentially a lifetime's supply, is pretty cheap.
EDIT: And I meant to let the slurry dry.
Just a light but nice reddish tint. This reminded me that with these soft woods, you loose a lot of color from soaking in and then sanding. I thought about going darker but decided I like it this way.