Well there doesn’t seem to be a way to find each other without outing and then they become instant targets (and still the power of knowing each other isn’t that great compared to some other classes).
They get unlimited strongman kills once they find each other. Also, the purpose of the investigative abilities they have is to help find the other twin without outing directly.
Perhaps I should have tried using one of those invest abilities sometime later
Did not have this opportunity this game as I was double ritual’d and heir’d.
Also even if you found each other without outing you’d have to our both to actually use the strongman. Still doesn’t seem that great imo.