Well, the current saber throw is like it is because of balance changes to it in the past.
From a logical stand-point, it doesn't make sense that Jedi are unable to boomerang their lightsaber like in the movies, since they are supposed to be controlling it with the force, but it turns out that balancing a skill like saberthrow isn't very easy considering the fact that Jedi/Sith are primarily a melee class with a few buyable ranged skills.
In order for this to work in open, you'd have to have the boomeranging ST as a buyable skill, where cost can balance it out along with maybe a few requirements. Perhaps you'd need defense 3 and deflect 3 and then buying the ST would cost just enough that you wouldn't be able to buy push 3, only push 2. That way, you could have it deal a decent amount of HP dmg, but use a high amount of FP and continue the drain over time. Perhaps you could make it do Damage per sec instead of hitting once. That way, if you aim and control it you could hold the saberthrow in an enemy for a second or two and kill him at the cost of all your FP. when FP runs out while you're saberthrowing you drop the saber and aren't able to get it back for a few seconds.
Shooting the thrown lightsaber could make it drop to the ground, but the jedi would be able to immediately pull it to himself without the Cooldown incurred by low FP saberdrop.
But is all of this trouble really necessary? It's not like the ability is a crucial part of the jedi/sith class. It's more like a cool side-gimmick that can be used for the occasional trick/kill-steal.
