I've decided I don't like the way Jaded functions. The RT version seems decidedly superior to the DH version as it provides not only immunity to Insanity Points caused by 'outrageous events', but also to Fear Tests from the same. An immunity to Fear Tests from xenos, pirates, and pretty much anything that's not a 'Terror of the Warp' eliminates what I consider an important aspect of the game. As written, Jaded characters are OK in the presence of a Genestealer, a Lictor, or even a full-on Tyranid invasion!
It also causes some problems when the Jaded character doesn't know whether or not something is a 'Terror of the Warp' in-game (Slaught don't scare him - as long as he thinks it's not a daemon, and he might be OK with daemons if he thinks they are xenos). I'd rather make something that is a little less powerful in some ways, but avoids crossing into metagaming at all. Here's my house rule for Jaded:
Jaded: When you take a Fear Test, the Severity of Fear is reduced by one level. If the Severity of Fear is reduced below Fear (1) Disturbing, you automatically succeed on the Fear Test. Otherwise, you take the Fear Test against the reduced Severity of Fear.
I've also made a house rule to address the odd wording of Survivor (Death World feature). Here's what I've done:
Survivor: You gain a +10 to Willpower Tests to resist the effects of Fear and Pinning.