Do you find it hard calculating routes from a-b using compass bearings, timings and pacings, and a storyboard based on map features like walls, boundaries, cairns or sheepfolds etc. This method of navigating has such a complex story board that it requires constant referring to the map and compass. Complex pacings and timings, not conducive to a comfortable walk in the hills and an interesting conversation with your companions.
Want to be able to navigate with your map and compass, for the most part, zipped inside your pocket. Navigating using contours can simplify your navigation on most days being able to identify complex train around can allow you to put simple story board together so you can navigation with your map in your pocket and actually speak to people in your group!
Have a look at what you can do http://mountaineeringjoe.co.uk/mountaineering/navigation-courses-snowdonia/