Originally Posted by Kolyan2k
it does have torque converter. ps. i loved my SMG-II
The torque converters on the Steptronic and on the IS-F lock up above 10MPH and from that point on have no involvement in gear changes.
I never drove an SMG so I will defer to you since you have experience with it, FWIW, when I went to the BMW MPower Tour earlier this year during the presentation before we drove the M Cars someome asked how the SMG compared to the SMG. The answer was "The SMG was crap". I take this with a grain of salt as a friend of mine recently purchased an E46 M3 with SMG and thinks that it is great.