I do alot of hillclimbing and trail riding and my setup is spectacular for all-around and is very fast too.
The key to my motor is a wiseco hotrods longrods crank. This transformed my motor into a little less of a revver, but it still gets the revs up and is easy to lug it and short shift it. I also have a set of t5's, 28mm PWK's w/ pods, A Cool-Head with 18cc domes, delta v-force II reeds. On the ignition side, I the timing advanced +4. This setup allows me to run a 15 tooth front sprocket with a stock size 89 rear sprocket. I have trail rode it and the 15 can be a little fast for tighter trails and I find myself clutching alot, but switching to a 14 front would make that easier. I have also raced a bunch of raptors, 450rs and the like and they cant hang. I like the motor for its rideability and all around power. It has great low and mid power and softens the hit but still pulls like a muther on top.
If you want any more info let me know.