I thought I should share my great experience at RMP. I have been bringing my car to Rocco's for the past two years, since day 1 of my ownership. Just recently I have KW V3 and short shifter installed on my E39.
Prior to the installation I was expecting this upgrade would improve the handling characteristics at the expense of ride quality (hence the wife asked why I would spend $$ to make the car ride worse). Rocco went through great length to adjust the settings properly by taking the car out for test drives himself. Now the car would glide over bumps and give a much more comfortable ride over the stock setup (while greatly reduce body roll in corners). However, the new problem I have now is that wife would ask to drive the car.
As for the short shifter, I will say it is the best upgrade (for the money) I have put on the car. It provided the precise feedback that the stock was lacking (the stock, in comparison, has this rubbery feel).
Big thanks to Rocco, Lauren, and Greg!