I am not sure i understood cimmerianthief's comment about the assassin checking coordination for drawing weapon, unless that comment was not addressed at me.
But saying that Discipline is useless is weird as it's the skill you use against fear AND the main skill against Coercion, Deception and Leadership checks directed at the players.
That seems like more uses that even ranged which is only used when trying to shot something.
It seems to me that putting all the force powers under the discipline skill might be unfair to other characters who are not playing a jedi counselor. They are already invested in other skills heavily and now they need to invest even more to get a semblance of effectivity (if they have 2 will and now need to invest 30 xp more to get 2 yellow and 1 green which seems the average) when confronting something tough (with force protection). But writing this i also might understand that those other characters who are counselor are not good at those other skills the first ones invested in so it should even out. I guess.
Then i would ask, would you allow your players to use other skills instead of Discipline in certain Force checks? and if so, which ones and what skills?