Jason Pridmore shows the fast way around Thunderhill.  The thing to take away from this video is “maintenance throttle.” This track keeps the bike leaned over in the corners for a long time.  And if you have ever tried to turn a bike while you are hard on the throttle, you know it is near impossible unless you are power-sliding because the bike wants to stand up.  So to be fast in long turns you need to apply “maintenance throttle to keep the bike at speed but not standing up.  To do it right you have to be smooth.  Watch a master.  No choppy throttle here.