Posted by Chriscase on Monday, July 20, 2009 at 20:20:02 :
In Reply to: Twisted? posted by David Sherman on Monday, July 20, 2009 at 19:35:20 :
Maybe somebody squashed the two 'arms' together, distorting the socket into an oval.
Ink or paint the inside, the test fit and see where the ink is wiped away.