I have a 911/993 with a tipronic trans. In automatic mode it shifts terrible !! It doesn't slip or grind but it is in 4th gear by the time I am at 40MPH. If there was such a term as hypershifting that is what I would call it. It also always starts out in 2nd gear from the start and will not always downshift when slowing down or excellerating. ANYONE HAVE A CLUE ???