Re: F10 paddle shift question
On the F10, when in D mode, using the paddles activates the manual or M mode, not the S mode. On the instrument cluster, the drive mode indicator will change from D to M1, M2, etc., depending on whichever gear was activated when you clicked on the paddles. Only way to get back to D mode thereafter is to shift to S then back to D or wait until the system automatically reverts back to D mode.
Its very useful when you want to downshift to overtake or for corners (especially when the car is in the 7th or 8 gear and there is little engine braking).
However, when overtaking, you need to be mindful not to simultaneously step on the accelerator to effect a kick down and use the "-" paddle. I have been caught out a number of occasions since there is sometimes a lag between stepping on the accelerator and kickdown. So, being impatient, I tap on the "-" and, voila, the kickdown happens. Tapping on the "-" paddle then induces a further downshift. This drops the gear too low, the revs climb very rapidly and you don't end up going any faster - dangerous. Forturnately, a tap or two on the "+" paddle solves the problem.
Don't worry, your oc will not redline all the way home

. Even if M1 is selected (when in D mode), the car will only redline for about 20(?) seconds before reverting back to automatic mode. Revs will then drop...