I've got the quickshifter too and abolutely love it. Full throttle clutchless upshifts. It works by killing the ignition momentarily in order for the engine to unload and for you to get the bike into the next gear. I only use for upshifts and not down the gearbox. I've set mine to a 55 millisecond kill time and for the unit to only work above 2200 rpm. Of course, I use mine for a roadracing type of application.
Because I'm using for the GSXR1000, I have to use an ignition module, along with the QS and PCIIIUSB, because I've got secondary injectors on my bike.
I use the GP style shifting (1 up, 5 down) so I use the Dynojet QS "PULL." The "PUSH" is for standard shifting.