Its all depends on the rider and the track itself, but from my experience it was much easier to ride the 600 around than my 1000 and I personally was 2 seconds faster. Now was it mystical powers that made me faster, no. It was the 600 was easier to turn in and maintain the turn ( no torque rules) but lacked the umph out of the turn my 1000 had ( enter awesome wheelies). Also because of the lack of torque the 600 carried more speed into the corner and apex but doesnt accel like the 1000.
I think your reading comprehension sucks, I said I was faster on a 600 and at Mid O there are only two straights. I was faster on the 600 because mid O has more technical corners and that extra speed made up for the slower 1000 through the twisties but the 100 made up more time on the front and back straight into Thunder Valley.