I can't remember if it was yesterday or last week but there was some discussion on the "who's line is it" issue. And I can't remember if the difference between "strain" and "line" was fleshed out or not but here is a really good read on the subject of "strain".
http://www.facebook.com/groups/134787729030/10150680308649031/
God Bless,
http://www.facebook.com/groups/134787729030/10150680308649031/
God Bless,