I still haven't understood the reasoning behind this bios switching feature, especially with release time being in conjunction with the 6970.
My first thoughts were not of flashing the 6950 to 6970, but of "new" revisions of it's own bios coming out that may be fine tuned, that were perhaps not ready at the time of launch. Custom ones or what-have-you.
If the 6950 worked exactly as a 6970 - there would be no reason to try to sell the 6970.
The concept is good tho if it means that if a bios fails or has undesirable effects, you 'switch' to the standard one. I have a feeling this is not how it's perceived tho.
Maybe the idea is that you switch to 6970, but for the love of god - don't keep it on there 24/7 ? They can't be thinking that. They'd surely have an extending switch that'd be easy for the user to use. Or more ingenius, just a keyboard selection during post.
From the oem pov tho, I can't see them thinking performance.