teh white knight <| sep |> I ' m no expert on how the 109 ' s supercharger worked , but due to the fact that it is controlled via an aneroid barometer , it is able to continuously vary the the settings for the inducted airfuel mixture thus providing a mostly linear power curve where you don ' t notice lag phases as in normal superchargers . I ' ll make an analogy here that relates to cars . Continuously variable transmissions CVTs are widely used in most commonplace , everyday appliance cars as opposed to traditional automatics where you can feel a shiftpoint . For these transmissions , there is a steel band that can change it ' s length and therefore the gears continuously without having discrete shift points for gear changes . Now manufacturers often program shiftpoints in so CVTs feel like traditional automatics , but that ' s a different story entirely . Basically what I ' m getting at is that the ability of the supercharger to be varied incrementally on the fly via taking in barometric readings allows for a mostly smooth , seamless power curve until you hit critical altitude for that SC . Hopefully this helps and my analogy is somewhat relevant , but I may have sidetracked too much into cars again .