Hey Tinpan. When I figured out this idea it really lifted my rythum playing. It is also great when you play with others since you can play diffrent sounding chords that actually still copesthetic to the chords of the song. It come in handy when you are paying lead as well, since you already know chords up and down the neck and you can use these to make your lead playing more atuned to the music you are accompanying. Like I said this really helped me grow.