[member="Ayumi Pallopides"]
On the Force disperser, canon's vague. What's certain is that it's alchemy, and not biological. So far every functional example we've made or allowed has had a dev thread, yeah. It generally projects a field, room-sized or so, in which Dark Side Force presences don't show up. Good bet it works best on the signature of the one who made it.
Ionite, yeah, just dev thread well, keep production level low, and don't make things that obliterate stuff.