Re-tapering the needle-

If you use a drill, be VERY EXTREMELY careful not to damage the needle.

I rolled mine on the benchtop while pinching it with some 320 wet-or-dry sandpaper, tiny drop of WD-40 on it too.

You want to take of only at the top just short of where the taper ends.

Sand-test-sand-test.

It doesn't take much, and you can get things really out of whack fast if you're not careful.

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If it ain't broke, and you mess with it long enough, it will be.