It in the section labeled "Sensor Verification". Page 40 of the manual and page 14 of the Quick Start Guide. It is the gray box. It is related to the fuel prime cycle that happens every time the ignition is turned on. If it sees an rpm signal before the prime cycle finishes it cuts short the prime cycle. Which causes longer crank times.Is that 2.5 seconds documented somewhere? I know I just have the regular Sniper, but I'm able to just turn the key all the way to crank without letting it sit on run and letting the LCD boot up. I do usually wait before cranking, but that's because I'm a nerd and like to see the display light up and check everything out before I start it.