I didn't say in my post above, I almost never go above 6500 RPM and typically shift around 6000-6200, exceptions are places like coming up to tower turn at Sebring (or other turns) where I don't really have time upshift because I would then immediately downshift so I wind it out a little but try never to go above 6500. I believe 6500 is the Rev limit on the 2.5 engine as well. It's just my philosophy. Am I losing time? Maybe...