If you have seen Star Wars: Episode III - Revenge of the Sith, recall the final lightsaber battle between Obi-Wan Kenobi and Anakin Skywalker. Obi-Wan begs the more powerful Anakin to give up at the conclusion of the fight. Why? The future Darth Vader's chances are hopeless because Obi-Wan has the higher ground.
Overhead Slash Although Master Tip #3 discusses ducking as a technique in energy sword battles, attacking from above is just as effective. When two players with swords lunge at each other, the person who is lunging from a higher point will usually win. Timing is still important when jumping and lunging so that you attack when you are at a higher point in your jump than your opponent. Jumping down at someone and attacking with a sword from a higher position on a map is even more effective. Especially when you add the fact that your incoming leap may not even be seen.