sounds about right...has a little pump simular to that on an airhorn...push the shift up botton air pressure moves the actuator moving your shifter shaft at the same time kills the ignition for a split second...no need to let of the throttle..
and yes you can do the same thing with your foot..powershifting...
SMOKEY BURNOUT MASTER OF THE WORLD!!!!!
08 XL883;HAMMER 1250,Heavy breather,Rinehart 2-1, Power Vision,Ebc floating rotor,XR1200 Nissin caliper,1200R Mastery cylinder,RK shocks,1in tank lift,wire tuck,crossroads fork brace,low rise drag bars int.wired,Goodridge Ss line,Chrome valve stem covers, and a few top secret parts..