BTW, I strongly suggest deleting the cache before qualifying or racing. Something is not right and when I deleted the cache, things went back to normal.
I did some laps in TT last week. I did ONE lap in the 650 and did 2:29.8, I tried this morning, drove my butt off, and could not break out of the 2:31's. I loaded the 650 ghost from the top ten. I was ahead at T1, and then I watched him drive away up the hill like he had 100 more HP or something. I was losing over 1 second in sector 2 to my own previous best lap. The car slid all over. It was a mess!
I delete the cache in hopes that maybe that will help.
On that next lap, not only do I keep up with that ghost, but I was AHEAD of him at the top of the hill into the chicane. Now, I screwed up and lost time (hence the 2:30.4), but you can see that I was immediately 6/10ths faster even with a mistake, where as the previous session's 2:31.0 was essentially mistake free.
Then, I beat my previous best time on lap 2, again, pulling away from the top 10 ghost out of Eau rouge.
I did not change what I was doing between the sessions. The car simply hooked up. Time doesn't lie. 2:31, 2:31, 2:31, delete cache, 2:30, 2:29.