It will rev out a lot further than you think. Try winding it out till you find the rev limitter in 2nd in a long, smooth field or dirt road. You'll be surprised at how high that thing will pull.
I would suggest getting used to hitting jumps while still on the gas and not letting off till you are completely in the air. You will likely have to move yourself farther forward to compensate for the extra drive you'll be getting. With 4 strokes, merely letting off the gas while in the air is almost as good as hitting the rear brake.
If you hit the jumps on the gas and forward on the bike, letting off in the air and pushing the front forward and down (just push yopurself back, the bars will go forward and down on their own) will return you to a more neutral position once airborn.