Count me in as one of the .1%.
Did it last night. Wasn't nearly as bad as I thought it would be, honestly; I think my bijillion laps around it in GT-S helped a lot. There were two sectors that gave me some trouble. I can't recall which exactly, but 7 or 8 or something. S1 was also one of the harder ones which was what dissuaded me from this CE for a bit. But, if one was being tough, I'd just skip it and come back. Worked really well as when I came back to it, got it pretty quick.
My first full lap I think I would've gotten it, but I doubted it and braked too late after the long straight. Second one I was over by a second. Third one got it with a 6:36.7X. Was actually surprised to get it as I would need two hands to count the amount of mistakes I made: too deep here, a little squirrelly there, turn in off at times, etc.
I had a harder time with Bathurst and Laguna (still haven't golded the full lap on Laguna).
PS - If I had a nickle for every time in a CE I got within .050 of gold but not quite there, I'd be rich. That being said, sometimes the GT gods smile down on me.