so i'm swapping out plugs and one of them won't back out. i got it to turn about 2 revolutions, and then nothing. i then tried the tighten/loosen method to see if i could get the plug to play, but the plug pretty much just seized.
i read in some newsgroups where people suggested soaking the plug with wd-40 and then trying again.
anyone else have any other ideas?

thanks,
jim