Looks like I've got it too. For a couple/few weeks now. I was running great for a few weeks after the last tune change, then this started.
I seriously doubt that its the tune since it ran just fine for a couple of weeks. Now it seems to run into a wall every few runs. In fact, I find
that if I shift early it'll hit the wall almost every time. It did not do this until recently! And I've seen it in both 2nd and 3rd.
Max upgrades but using level 6 gears
Tune came from the forum
I was running 7.30s and .40s. When it hits the wall I end up running high 7.80s and .90s.