What he said! Good explanationtheres no way youre going to beat the computer. all you would do by running it in sequential, is adding more work for yourself, for at best, equal results. there is no way to maually shift. sequential just controls the maximum allowed gear. so if you drop it to first, then floor it, you have to watch the tach, to try and shift at redline. but thats what the truck does in AUTO, when you floor it anyway. and the computer can shift it closer to redline than you will.
the only real benefits of sequential mode. is to lower the gear for towing up hills, and for engine breaking going downhill.
it does that to protect the engine and transmission...shifting below redline will not hurt you time wise in 1st gear but maybe .2 seconds if that maybe .1...if that was the case why someone would lose a drag race..... then you better get more power somewhere else and beat them by 1 full second.The only place the the manual shift may help you is at the 1-2 shift because the computer doesn't shift at redline in 1st for some reason.