I read your article about regression testing . Many things were clear however, it seems like all your regression testing article is based on (Retest All regression testing technique) instead of (Selective Regression Strategy) or any other technique. I think you should have mentioned this.
And it seems like Regression testing is done with the same testcases which are used for Functional testing?? So, in a way the same exact testcases(lets say 1000) are used for both functional and regression testcases??