Well, after driving it for a few days I can say that there is a world of difference between stock and converter + servo. Shifts are firm and instantaneous, with no slide shifting or falling into gear. The stall makes it feel like a different truck, and it will lay rubber from a standstill or slow roll just by putting the pedal down. There is a noticeable difference from the stock converter in putting around town and light/part throttle driving, but lockup and cruising manners are unchanged. Downshifts are much more authoritative due to the quick engagement and higher flash stall, as it puts you in the meat of the powerband. Overall, I love it.