Good points, but when I have done that, I always preferred to start fresh, rather than take a "shortcut" map from A to B. The reason is that otherwise you alwa

Good points, but when I have done that, I always preferred to start fresh, rather than take a "shortcut" map from A to B. The reason is that otherwise you always try to map things back to your previous knowledge and expertise, which can make you biased or give you tunnel vision. "If you have a hammer..."