I have dreams that Santa will make a G37/Q60 sports coupe, but it'll have double-clutch speed shifting. (not the ,let me think about it, and then a second later shift) --sorry, I just test drove a M335i , it seemed far more responsive to manual shifting than my 2011 G37S automatic

 

It's all programming. If someone could come out with & trans programmer that would take care of a lot of things.
My SRT8 had 1. It was awesome! Link lock, burn out modes, set redline in each gear, & shift pressures for each gear on upshift & downshift.

Santa needs to bring us 1 of those!

 

They make a more responsive paddleshifter, it's called manual.

 

Have you installed a 'grounding kit'? If not, search the forum and head over to Home Depot or Lowes my friend.