Commenting on this video I must say that it left me somewhat confused. I feel that a use of feature charts and the addition of conclusions (i.e......in summary if you have............then choose this or............) I am also concerned that the recent videos as a whole are becoming so dense with info as to be hard for less experienced people to follow. I know I might be in the minority here but I normally read printed documents when I want to really immerse myself in a subject. Thanks for listening.