A320 roll response rate (in roll direct) is scheduled by
flap handle position, not actual slat or flap configuration as I stated above.
I believe I am a pretty good 329/320 pilot but a lousy aerodynamic or computer engineer, or FCOM writer (as opposed to vilas). However I read a lot, especially incidents and accidents about the airplane I fly.
Those reading this thread, who fly a 319 or 320 and want to expand their knowledge about this topic, I suggest you read the following report:
http://ebook.lib.hku.hk/HKG/B35840213.pdf