skicrushI would tend to THINK counter clockwise would be fastest, since the initial tight hairpins are so tight, and you're not going too fast anyway because they are so short, and thus you have to brake less. Plus, gravity helps after each bend on the last hairpins (the ones with the jumps in between)--with longer straights in between each turn, I would think gravity's help would help you make better times--faster on each little straight between each hairpin.
Having said that, I am fastest clockwise as well. And I don't have an explanation for that. Maybe because you can carry more speed through the back "straight" through the undulating downhill section.
Oh buddy, that's where you are wrong...we are talking about lap times here, in another word, hot-laps. You actually carry a LOT of speed going to the tight hairpin because of the long straight before the start. I have to break, with N2 tires, at least 30-50 meters away, using threshold. Yes, gravity helps, and it kills. After each hair-pin, there is aways another one after. Because you have more speed, you have to brake earlier, and the straight line in-between is so short, so the times are not going to be that furthur apart.