Lack of Bottom Arm at Takeoff

[SomersetVault]

Hello all, I have been having some problems coming off the top of the pole. This jump is from a six left on a 14' 170lb pole. The bungee is at 15' with the standards at 80. besides the lack of bottom arm is there anything else that needs alot of improvement. If anyone has any helpful hints on how to drive but not block out the bottom arm I would really appreciate it. I have a link to the jump below, thank you!

http://youtu.be/jqpLh0DpMLs

[CoachEric]

Create space with the arms before the tip strikes the box, and push the pole toward verticle with your bottom arm. Practice your plant drills off the runway, and this will improve.

[vcpvcoach]

You are about a foot under at takeoff. Try and post a video of your whole run. This way we can see where the problem starts.