We don't have a generic 'L5R' forum here, so I thought putting this here might be better than... err, anywhere else?
So, setting up the campaign, I decided to throw out the mythology of the setting. Why? Well, I wanted something that was 1) closer to Japanese mythology, and 2) something closer to Shinto philosophy. The entire background for L5R is way too Western for my tastes. Tsukiyomi devouring his children? Greek. How on Earth would the Rokugani even remotely accept cannibalism as something the kami would do? You would think Amaterasu would have shot him for that, then fished her kids out.
Anyway. So for my campaign, that got thrown out. I had the story follow the Japanese myths, including the 'hide in a cave' and her brother being banished and doing heroic deeds (and founding the Mantis Clan). I had Amaterasu's contest with her brother be what created the kami which founded the Great Clans, crafted by Amaterasu and her brother. This (by the by) also allowed me to sneak Shosuro in as a kami.
I removed the entire idea of Fu Leng being evil , and Jigoku being evil . This falls more in line with Shintoism - the spirits are neither good or evil. The idea of 'good' and 'evil' is a human concept, not a divine concept.
The other thing I did was adjust what the Taint is. For me, the Taint is kegare . Spiritual pollution. It isn't 'Jigoku trying to claim the mortal realm' or anything like that. I still have the Shadowlands, but it operates differently: A maho-tsukai tried to steal the power of Fu Leng (who is the guardian of Jigoku - he looks after the punishment of the wicked). The ritual blew a hole open and created a gate to Jigoku. This caused a section of Rokugan to be permanently tainted with kegare . If you're in the Shadowlands, and you perform spiritually impure actions , you can get Taint. Which does most of the nasty stuff Taint normally does.
Monsters still come out of the Shadowlands. They're not Evil. They're simply spirits that are trying to do their job. Punish mortals. In Jigoku they're fine. Here, that's kind of traumatic for the mortal population. These oni and goblins and such aren't evil - they're not malicious. They are spirits - lacking in the free will to choose their path (Void). So they do what they're supposed to do - to anyone they come across. And so they have to be killed (sent back to Jigoku), banished (sent back to Jigoku), or bound (and aren't you a bad person for trying to usurp control there...)
I've also done some adjustments to the Kolat (made them closer to the Yakuza and got rid of this whole 'overthrow the gods' nonsense), and the Lying Darkness (again, something done by mortals messing things up, this time with Meido). So far, it's gone pretty well, the in-character adjustments are few and far between, and it feels more like mythic samurai drama rather than Western Hybridization.
So, for the sake of conversation - what have other people done to tweak their game settings?