i have 122000 km on mine now and the lurch is absolutely minimal, where as it used to whack you so hard you thought you had been rear ended, now as i stated previously it only happens if im slowing to a stop and then allow the car to sneak forward, and then only noticeable in peak hour crawling traffic, so software and an oil change appear to have made the difference.

i also recently found out that by slipping in into neutral in stationary traffic was not helping.

apparently the trans detects this sort of motoring and will hold second gear ( while stop start crawling) unless speed goes over 40 kmph OR you select neutral, so apparently if in stop start driving conditions its best just to leave it in gear, ive been trying this lately and cant say if it helps or not