Nathank You did a good job of summarizing the usefulness of bodytypes as a starting point much better than I did in fact and I like your advice about limiting cycling afte leg training as well.I think the third bodytype is mesomorph the naturally atlethic type with broad shoulders ,slim waist,good natural musculature and low bodyfat.Most people have some meso characteristics but are haunted by some of either endo or ecto as well which they need to focus on if their goal is to make their body more athletic/mesolike.