Actually, Ebb-free Ebons are full canon, and most of them are mad to the point of full psychosis. They're known as -- and literally considered -- 'dead' by the Ebon races, who are disgusted by them. Their families hold funerals for them, then never speak of them again. They are the objects of a hell of a lot of hate and scorn, and other Ebb users won't voluntarily stay in a room with them. Most of them are heavily sponsored and equipped by Karma, 'cos they can use implants as they don't give a shit about their Flux. That means Dark Lament particularly loves them getting killed, and the Contract Killer ones tend to be very high profile + very dangerous with all top Karma tech, in constant battle with DL-sponsored Killers. 'Dead' Ebons don't get to pump formulae unless they do their own training + research -- no-one would ever teach them, and they can't learn through practice. We had a whole scenario based around a group of them...