Things that are obvious in hindsight:
- Aluminum really doesn't want to be soldered. Really not.
- If you want high polish, 600 grit isn't quite high enough; that's what tripoli is for. (I've said "My kingdom for a $shop_tool" about twelve times today, but I'll say it again: my kingdom for a flex shaft. I have NOT had to say "my kingdom for a torch
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