on platinum and iridum plugs it is actually recommended to not gap,thats what the bottom # on an ngk plug is,the factory set gap...if you scratch the surface you can actually cause a misfire...there is a lot of people and so called countermen @ parts stores that still tell you to gap these...if they were properly trained like we train our counter people they could tell you this

Lonnie
Auto Parts Professional
95 sportage sold but not forgotten