I did... and it didn't even boot the system and kernel image didn't change (Sony has separated something in there).
Anyway, I flashed .167 back again... resulted in Hard FCs... and a message saying I have to wipe /data.
Once did... inside sdcard...
My systemUI doesn't bring me the notification toggles... or the cool backround :D
but it do give me all the looks...
it's not mine... it's from here:
Copy your System UI somewher...