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.