I don't know about the rest but I feel it worthwhile to read things even if it is for the third or more times. It never hurts to do a refresh on my mind. One thing I like about this chart is that it does not try to be a cure all for all situations.
The red note at the top should be the primary thought in any method we choose to follow. I try to follow written directions but only up to the point that I see they don't work for my situation.