have someone watch you hit the face of the jump, or videotape it from somewhere where you can hear your bike. listen to your rpms as you go off the jump. my guess is that you are chopping the throttle on launch, which kills all of your momentum. another thing that i used to do to get me to accelerate hard off of the launch, is to not accelerate so hard out of the corner before it, then just rip it all of the way off of the jump. alot of times if you just hold it steady all the way off of the jump you will just get that little bit of extra power you need. one more thing, the highest way isn't the fastest way. once you can consistantly clear this jump, try and absorb some of the launch once you know you have enough momentum. you'll get it, just cut the track until you get it right.:)