Nick,
I had a couple Gingher nippers back when I tied flies. The blades seemed to loose alignment easy when I was using them for heavier (ie not thread cutting) purposes.  The steel was softer than my Gerber knife, soo, I could burnish the blades to very sharp with just a few strokes on the back of the knife blade.
I gave up on scissors, though. I simply went with a super sharp blade, honed with some diamond paste on a block of maple every 100-200 uses. But, with most ceramics I have ever used, they get sharp and stay sharp longer, but they do not ever hit the super sharp edge of a well burnished/honed piece of hard steel.




