the safest way to make the most power for the SCT. we all know this. but engine longevity has as much to do with the the way you drive and maintain your engine than the programmer, actually more.
you could take a stock truck and beat the piss out of it on a daily basis and you could take one with enough mods to have 500HP at the wheels, but only get on it every once in a while, and always warming up / cooling down properly, and the stock will crap out first..
but there is certainly truth to the old saying: the candle that burns twice as bright, only burns half as long.