Lets say I set a window switch to turn on between 3000 and 5000 rpm to control an N2O system. I've heard setting the switch below the shift rpm will help keep the transmission alive since the N2O will shut off during the shift. What if the rpm doesn't drop below 3000 on the shift? Will the N2O not turn back on? Will it turn back on as soon as it drops below 5000?