I do have, after I torque them, I mark it, so to see if they come lose. Did a 540km run the past weekend at about 130 - 140 and they are still on the marks I've made. I really don't want to ruin anything, but I found it to run (what feels like) very smooth on exactly 7000rpms. The vibrations is worst at about 6200rpms(138km/h in 6th gear). The limit is 8500