How to achieve "weathered or distressed" look on blade?

Far more knowledgeable people are gonna come by soon, but here's my two cents. I get this texture when I leave a partially scaled knife stock in vinegar to descale a little longer than required and sand out the patina later. The parts that were previously not covered by scales get etched a fraction of the hair's width more that the parts where the scales had to be removed from. And when you lightly sand it with a high grit, the raised portions that were scaled become lighter because the acid wash from these spots is taken out a bit.
I'm fairly new to knife making and could quite possibly wrong, but this is what I've observed.

Conflict breeds creativity
 
Sandblast with a fairly course medium and etch in ferric chloride. FC can be purchased at most knifemaking supply websites or, should you somehow still have a radio shack nearby, it is sold as board etchant there. Vinegar and muriatic acid also work I believe. It's often referred to as "acid stone wash" finish. A search will give you lots of info and how to's.
 
This didn't look stonewashed to me though. A stonewash is quite uniform all over the blade. The second link he posted has a close up that shows pitting on the blade too, and there are large areas of light spots followed by areas of a darker etch.

Conflict breeds creativity
 
Dab mustard all over the blade, let sit for a few hours, look at it and do it again if you want, wash off and dab cold blue on the blade. Wash off and wipe down. It's that simple. Just remember, I said "dab" not wipe on. It makes a difference.
 
Thank you all for your ideas. I think the best way to go about this is to FC acid etch it, then a quick light stonewash.


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