I don't want ya'll to jump ship over to the Ruger forum but there is a great article over there. This is a constant question that I have had like most. It sounds like the guy that wrote it knows his stuff. The guy that posted it just copied it from somewhere but it's getting some interesting feedback. I'd love to hear the feedback back on this forum.
http://www.rugerforum.com/phpBB/viewtopic.php?t=21102
http://www.rugerforum.com/phpBB/viewtopic.php?t=21102