In your video it sounds like your feathering the throttle out of the hole. I can hear you lift and get back in it. That will defiantly kill your 60ft and et. Looks like your foot braking also. 60ft times will be slower than using a transbrake. I think when you hit high gear in the burnout your motor is at 5000 and the tires aren't spinning because your in the stall of your torke converter. Bring your rpms up to 6500 in the burnout and I think that may fix your problem.