A couple things I noted while reading this afternoon...
Could the same techniques be used on Anakin when "they" made him Darth Vader?
- Mace Windu regarded that Palpatine had a penchant for religious artifacts. One thing he noticed was a small statue of Wapoe, "the mythical artisan demigod of disguise."
- Greivous was "maimed" in a shuttle crashed and was brought back to life by cybernetic engineering that was developed by the Geonosians. The Geonosians also "had ways of modifying the mind without a patient ever being aware that he had been tampered with. Greivous certainly believed that he had always been the cold-blooded conqueror he was now, when in truth his cruelty and prowess owed much to his rebuilding."