I've been thinking some more about streamlining the modifiers in Swift d12, trying to remove any that aren't strictly necessary, and one that really comes to mind is the Staggered condition. Characters frequently become Staggered in combat, giving them a -2 penalty to their rolls, so it's something that often has to be subtracted from ability checks. During play testing, it sometimes felt quite obtrusive.
However simply dropping the penalty would make the Staggered condition far less significant, noticeably impacting other parts of the game (such as stunts). So I started trying to think of alternatives, and here's a possible solution I'm toying with:
Staggered characters do not suffer any penalties to their ability checks, however they no longer recover automatically. Instead, the character remains Staggered until they spend an action to recover (Champions lose one action die, but can still perform a standard action with their remaining die).
Recovery is optional, so a character can choose to remain Staggered if they wish, however if they don't recover they will be more vulnerable to further attacks (because they'll be easier to wound). This should speed up most combat encounters, as the GM can simply leave cannonfodder foes Staggered (they'll go down faster, and won't suffer -2 to their attacks).
Players are more likely to choose to recover, but as PCs are Champions they'll still be able to take an action (albeit with a single action die), so it won't feel like "stun lock".