Very cool graphs. Shiv is right about the shift time. This is probably why your ET equaled a stock 335i that ran at LACR not too long ago. More aggresive shifting and you'll shave some time off.
+1 on short shifting. The power really seems to taper off after 6500, so even though it will wind out to 7K doesn't mean you'll go faster. The nice thing is with a fat torque curve like this car has, when you shift at 6.5K you will still be at an RPM where you are right in the heart of the max torque.
