I noticed something today while answering a question... Ion cannon and turret both use dice modification to deal their damage. You must spend one hit/crit result to deal damage. But if you can't -- e.g. because of Midnight -- then you don't spend a result and thus it's easier to ionize the target.
Blocking dice modification isn't super-common, and Midnight is one of very few ships that can do it. I wonder if that's part of why we rarely see Midnight, aside from being priced kinda high for a 2-dice ship without 1E's free mods (predator and expertise). And ion weapons have been at least somewhat popular throughout 2E's lifespan (Kavil, double-tap Y-wings, etc), so it's something midnight would have to deal with on top of cost. Or is no one aware of this quirk of the wording?
There's also Blinded Pilot, which seems like it could be a godsend to ion users. You get blinded and suddenly you get better at ionizing aces.