Ah, interesting. So in situation 2, then, when I have both Stealth and Threne, I would roll Threne with +4D advantage due to the cloak, get e.g. 5 successes, then roll Stealth with +9D advantage due to the Threne and the cloak together?
Haha, okay. And in practice there is extremely little reason to ever choose Threne unless you require the 1 success on Threne to make it even possible to roll Stealthy and happen to have low Threne dice and no time for Carefully.