riders who ride natural tend to be better riders overall (just to stir it up!) you'll find that guys(&girls) who are good at natural will also be good at street, but being good at street doesnt mean you'll cut it at natural - theres a lot more elements to it. urban is good for increasing your confidence on big stuff but with natural youve got much more to think about - fighting & using angles, bobbles in rocks, using your pedals, finding grip etc.