The gearbox software has been updated Mike and the shift changes are much improved in terms of speed. Mine has never felt jerky from pull away though either before or after the software change.  I've got no issues with the brakes either as I bedded them in during the run in period but the pedal weight takes a little getting used to initially. Do you know what mileage was on the car you drove? If it was low the car will not run in Dynamic mode.