5 posts and 4 hours, yikes.  Guess some people ruined it for everyone.

So before I forget, I guess I will make notes here.

I wanted to reply to this thread about a scrypt tweak for performance increase:

bitcointalk.org/index.php?topic=369858.0

and note that it worked on my 7950s   but strangely doesn't affect my 7970 at all

and here is the last person that tried to make a tweak

litecointalk.org/index.php?topic=4082.0

which didn't work for me at all

The 7950s went from 610-611  to  620-625   so roughly a 2% performance increase.
On rare occasion I've noticed the rate bounce down to 610 but climb back up.
Watching the longer term WU to see what happens.

I'm curious why the 7970 is not affected at all.