I was getting very obvious (in i7turbo as well as in cpu-z) throttling at 21x205 4300mhz.
I just afudos flashed to 0006 as per uncleweb's posts.
Running lin-X at my 4200 speed to make sure it's still stable.
I'll post results if I get it going without throttling at 4300.

BTW, this thread is awesome.