At 06:10 PM 2/21/2011, Karl Wolz wrote:
>When vigorously cleaning the pins, be sure to do it gently, as the plastic
>tends to be a bit brittle.

A steel brush on a Dremel would be good, or better a fine sandpaper
wheel or a rubber abrasive wheel/point, or a strip of fine-ish
sandpaper looped around the pin -- easier to be gentle than with
Scotch-Brite.  Of course new ones aren't expensive.

But it's very likely to be the gauge.

d