Anyone else having problems with the conquest HD 8x42 binocular objective lens covers constantly falling out? I was fed up last time I was out putting the covers back on, it looks to be a bit of a design flaw as they don't really seem to grip the inside of the binoculars. So I ordered some opticron 42mm rubber objective lens covers off the Internet and they fit ok, not perfect though. Just wondering if anyone has found anything else works?