The Shadow Caster is the first ship with two Illicit slots.

Not sure if you would want to build it out like this, but say you have two FeedBack Array's on a Shadow Caster.

Would you be able to FB an enemy ship twice for a total of 2 damage? This of course, would give you 2 Ion tokens and 2 damage as well.

No. You're doing it one time instead of performing an attack.

I'd agree. You could choose to use one or the other but not both. Glitterstim feels like the best thing to use there.

Yup double Glitterstim will be the most common double, but I think you'll find a place for others in ADDITION to a single Glitterstim. For instance, with the way the mobile arcs work, I can imagine Inertial Dampeners being of use on the Shadow Caster. Oh, you landed inside my mobile arc? I'm not going to move. The new Illicit in Heroes that grants a SLAM might be seen. Find yourself on the receiving end of a Crack Swarm or Uboat formation? GTFO!

I doubt Feedback Array will be common in single either as it's currently rarely seen on large bases.

Honestly, after reviewing the Illicits we currently have available, none of them really beg to be taken in multiples. We'll see how it goes, but it's a slot with very few choices with disparate applications that, in general, don't synergize well with eachother. It's cool for flavor, but it's often difficult to justify "just in case" upgrades by themselves, not to mention multiples.

Double Glitterstim, FTW!

If the generic is super cheap, I will definitely be trying feedback array + dead man's switch. A big base has a lot of range one that it covers, and if you don't care about MoV much...

I could see Double Dampeners being a thing.

Giving a big ship the option of doing two all stops, potentially sequentially, seems really good.

Or FB array/ dead man as noted above, especially on Ketsu, who wants to get close and REALLY incentivises arc dodging...

Double hotshot blaster seems pretty useful for protecting against flankers who avoid your mobile arc.

Double hotshot blaster seems pretty useful for protecting against flankers who avoid your mobile arc.

2 Hotshot Blasters + Munitions Failsafe + IG-88 crew might be a little on the expensive side (at least 7 points + cost of IG-88) but may work well with IG-88B.

I don't think that doubling up on illicit upgrades is going to be the way to go. The SLAM illicit and Inertial Dampeners will give a Ketsu (with VI even) a really strong chance of getting a tractor token on to ships like Soontir at the start of the combat phase..

Double hotshot blaster seems pretty useful for protecting against flankers who avoid your mobile arc.

2 Hotshot Blasters + Munitions Failsafe + IG-88 crew might be a little on the expensive side (at least 7 points + cost of IG-88) but may work well with IG-88B.

Munitions Failsafe works with Hot Shot Blaster, but IG-88B doesn't (it specifies that the secondary weapon must be a [cannon]).

Double hotshot blaster seems pretty useful for protecting against flankers who avoid your mobile arc.

2 Hotshot Blasters + Munitions Failsafe + IG-88 crew might be a little on the expensive side (at least 7 points + cost of IG-88) but may work well with IG-88B.

Munitions Failsafe works with Hot Shot Blaster, but IG-88B doesn't (it specifies that the secondary weapon must be a [cannon]).

Good call, I forgot the cannon bit.