I don\'t really care about the slowdown thing, but I must say also that there really is slowdown in some games, for instance NHL, that game suffers from a real lot of slowdown, also try Timesplitters in 4-player mode and have everybody move and shoot like crazy, there is a serious drop in framerate there.
SSX had a little bit once every few races, and the drop lasted for like 1-2 seconds and it was barely noticeable.