In article 4X2pd.664713$8_6.378600@attbi_s04,
says...
The really old LO-2B quick releases have a "nub" made of brass. Some of
them were plated, but often the plating came off leaving the metal
exposed... Be aware that over the years the LO-2B has also had
inconsistencies in size, specifically between the black and silver ones.
Often I have issues getting black receivers to slide easily over the silver
bases...

Thanks. I bet that's what it is. Looks like there's no solution,
then... mine are all silver, but by now they must have standardized on
the smaller size, because some of mine are Atlas and some are On Stage
and they're all compatible.

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Jay Levitt |
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