* Multiple modes of fire, such as PSP ramping, and NPPL semi. * More than 1 million unique ways to adjust settings * Asynchronously monitors the trigger switch using an interrupt based scan at 1 million times per second for the quickest response time and fastest semi-automatic * Rate of fire adjustable from 14 to unlimited bps in 0.25 bps increments * AMB (anti-mechanical bounce) and CPF (cycle percentage filter) algorithms help to prevent mechanical and switch bounce without missing real trigger pulls * Color LEDs provide an easy to use programming mode which allows changes to nearly any variable, including debounce, dwell, loader delay, AMB, anti-bolt stick, fire mode, max rate of fire, eye mode, CPF, Gangster breakout mode, ramp start activation, and more * All settings are stored in non-volatile memory so they are not lost when the battery is disconnected * Power efficient software and hardware lengthen battery life * One-touch startup enables the marker to fire almost instantly * Low battery indicator hardware and software shows battery level each time the marker is turned on * light trigger microswitch This is the best upgrade available for the Spyder VS series.