I'm on an '06 400SM which is basically stock. I take it off road very regularly, everyone is right about the street tyres being very unforgiving. Packed dirt or gravel is a breeze, but anything loose will give you some trouble. Avoid sand at all times. Great advice on taking it easy on the front brake. I made the switch from an '01 R6 straight to the DRZ and that was the first mistake I made.