Hey the Same CF Cards I have,

Not to sure about the Sept 1st Nightly builds for productions work.
There's still some things broken like Card Format (wipe the whole card) .
So I would say no for now as it looks like no one is maintaining 5D2 builds , seem everyone
is all over the 5d3,7d with silence pictures and workflow problems and have forgot about Raw Video

I personally use the Oct A.D. build & the Feb16th nightly build .
2 reasons I still use the feb build . Everything work, there is no non functional features everything
works like it should, never crashes even with HDMI attach and displays properly .
Of course I still the have the benefit of 1872 , also proper framing in 3x crop mode with the half shutter button in Color.
But on the bright side the new nightly with the SRM job memory buffers works better with Slower CF cards but no advantage
for faster 1000x Cards at least on the 5d2.
Its seem after Mid Feb. the nightly builds seem to have increasing problems that could not be trusted for paid work.
As the links are gone for those builds , ML dose not want those links posted publicly any more,
if you PM I will give you the links that I saved , and there still work .