I was on n158 first. I made a backup of that then flashed kang p7 over that. then n206 over that. then restored back to 158. and flashed 208 over that. tried every combination. it works just fine without wiping anything, not even the dalvik cache. performance, i haven't really tested, but subjectively it's pretty good. 158 was crap, the new ones seem about right. i have the lockscreen completely disabled, never made sense to me since anyway the power button has to be used to wake the phone, having another process after that seems so redundant. i did take a gander and i didn't really like the look of it. the rotary one's much better.