I'd like to say that I know this method has been posted before, but this is a shortcut through it. In the previously posted one you go around the tower costing precious seconds that could be spent capping a base while in this method you just jump right past it saving me about 6 seconds and possibly more for other people! Since explaining would be hard I made a video so enjoy!
[ame=http://www.youtube.com/watch?v=_5vt0JYf6UM]YouTube - faster than fast way over ab gate[/ame]