Okay, so one of the new talents in AoR is Invigorate (page 99) which is worded as follows:
"When the character performs a Cool or Discipline check to recover strain at the end of an encounter, he may include Force Dice equal to his Force Rating. Each Light Side adds a success to the check, but each Dark Side adds a threat to the check."
In comparison, we have Balance , which is listed on page 94 and has the same rules text as the EotE corebook, which states that the PC just rolls Force Dice = their Force Rating, with no mention of Cool or Discipline, making it read as an "either/or" situation; either you roll Cool/Discipline, or you roll your Force Rating.
But I know a few GMs (self included up to this point), that allowed Balance to be used in conjunction with the Cool/Discipline roll, especially given how important Discipline is to Force-users.
So it would seem that with the introduction of Invigorate, we've been running it wrong. Balance is a bit more of a "sure thing" as there's no negative repercussions, where Invigorate offers a bigger boon but with a risk involved.
Also, wondering if the "adds a threat to the check" shouldn't be "adds a failure" instead. Not a whole lot of use for threat symbols once the encounter is done, though I suppose having it be failure means that you could wind up with no Strain recovered if you happen to roll nothing but Dark Side pips.