i read unabombers faq, but i still have a question it says in there that if they are pre-gapped they are not intended to have the gap changed by the end user, so i'ts about time i need a set of one step colder and a guy on here has some ngk iridium one step colder and he says they are pre gapped at .44, so i was wondering if i shouldnt buy these becuase they are already pre gapped? or if i can change the gap