Nothing new on removing the HS on these GPU's : http://www.youtube.com/watch?v=99VMW6Zfz1Q
Of course it did not help anything with refernce design, cause pcb could not deliver enough amps.

I did not gain anything without HS on DC II really, but when the HS was removed and OCZ freeze was applied to core / hs / pot combination it worked pretty well.

Too bad time run out for more testing. It was looking very promising.