A couple of questions about doing a restore. I've picked up a Bresduck Dubl Duck Special #1. It's in pretty good shape with minor pitting near the shoulder and rust around the pivot and the tang.

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However the bluing is pretty well intact and I would like to keep it that way. The first question I have is about the using the tumbler and the bluing. I just picked up a Frankford Arsenal tumbler and have my first blade, a no name, in the corn media after 36 hours in the Lyman Turbo walnut media with the Flitz. I have a couple of blades to do before I get to the Duck but before I do, I wanted to ask about the tumbling action on the bluing. I searched the tumbling threads and didn't see a reference to bluing. Will the walnut take the bluing off or leave it intact?

The other question is about the scales. I plan on keeping the plastic scales as they too are in pretty good shape with just a couple of deeper scratches. What's the preferred polish for these kind of scales? I've worked with Novus in the past for clear plexi but is that needed for the older yellow?

I'll have repinned a couple of razors before I get to this one so I won't be starting on a quality razor. Anything unique about repinning a Double Duk?

Thanks in advance for your help.