With all due respect, Wolfey... you have contributed a huge amount of information, expertise and data to this mod thread, but I see nothing gained.
I have banks of unmodified Gridseeds running on Windows 7 with the girnyau's gridseed fork of cgminer compiled for Windows by Sang with his config settings at 888MHz which are getting as good or better 24hr averages on the pool side... 350Kh/s to 360Kh/s over 40 units over 24 hours.
Okay, let's not be so hasty, eh?
I'm going to let them run overnight and see how the average looks in the morning.
Then I'll back them down to 850 clock and see how they do over another 24 hours.
That's the breaks in R&D. You win some, you lose some.
There are a few others trying these mods out too.
Let's wait and see what happens.
Wolfey2014
I am probably only slightly less disappointed than yourself. So please keep pushing forward with modifications and tweaks, without people like you and the others here, we would still be running at 600MHz and 300Kh/s. So keep up the good work.