Ah here's some MX action, I don't think I did too bad considering I havent "ridden" motocross for 2 years much less on a 450 supermoto.
http://www.youtube.com/watch?v=M8jCy4PESAo
*All the same gearing and everything I can run right at H2R too. The only differences is I use street tires with grooving versus slicks. I think it's an "ok" mix for both types of terrain.