I'd probably go with instinctive aim. Heightened perception is great on luke because rebels can easily field three high initiative (or swarm tactics) torpedoes, and delete a ship before it fires. The silencer is the only First Order ship which can carry them, by comparison, there's no I6 pilot, and they're bloody expensive.
One high initiative torpedo is nice but unlikely to one-shot anything that matters. Meanwhile, boost/link/roll, instinctive aim, force token modification is likely allowing a torpedo shot without being shot back at.